1722153132 has 144 divisors (see below), whose sum is σ = 5136768000. Its totient is φ = 476292096.

The previous prime is 1722153127. The next prime is 1722153133. The reversal of 1722153132 is 2313512271.

It is a super-2 number, since 2×1722153132² = 5931622820114818848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1722153096 and 1722153105.

It is not an unprimeable number, because it can be changed into a prime (1722153133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1148119 + ... + 1149617.

It is an arithmetic number, because the mean of its divisors is an integer number (35672000).

Almost surely, 2^1722153132 is an apocalyptic number.

1722153132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1722153132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2568384000).

1722153132 is an abundant number, since it is smaller than the sum of its proper divisors (3414614868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1722153132 is a wasteful number, since it uses less digits than its factorization.

1722153132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660 (or 1655 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 1722153132 is about 41498.8328992515. The cubic root of 1722153132 is about 1198.6450289537.

The spelling of 1722153132 in words is "one billion, seven hundred twenty-two million, one hundred fifty-three thousand, one hundred thirty-two".