45151722 has 64 divisors (see below), whose sum is σ = 125107200. Its totient is φ = 11726640.

The previous prime is 45151721. The next prime is 45151759. The reversal of 45151722 is 22715154.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (45151721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1272 + ... + 9587.

It is an arithmetic number, because the mean of its divisors is an integer number (1954800).

Almost surely, 2^45151722 is an apocalyptic number.

45151722 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 45151722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62553600).

45151722 is an abundant number, since it is smaller than the sum of its proper divisors (79955478).

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

45151722 is a wasteful number, since it uses less digits than its factorization.

45151722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10888 (or 10882 counting only the distinct ones).

The product of its digits is 2800, while the sum is 27.

The square root of 45151722 is about 6719.5031066292. The cubic root of 45151722 is about 356.0886294081.

Adding to 45151722 its reverse (22715154), we get a palindrome (67866876).

The spelling of 45151722 in words is "forty-five million, one hundred fifty-one thousand, seven hundred twenty-two".