1549225152 has 84 divisors (see below), whose sum is σ = 4455547096. Its totient is φ = 514667520.

The previous prime is 1549225151. The next prime is 1549225157. The reversal of 1549225152 is 2515229451.

1549225152 is a `hidden beast` number, since 1 + 54 + 92 + 2 + 515 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1549225151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172452 + ... + 181212.

Almost surely, 2^1549225152 is an apocalyptic number.

1549225152 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 1549225152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2227773548).

1549225152 is an abundant number, since it is smaller than the sum of its proper divisors (2906321944).

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

1549225152 is a wasteful number, since it uses less digits than its factorization.

1549225152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9086 (or 9073 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 1549225152 is about 39360.1975604798. The cubic root of 1549225152 is about 1157.1016505282.

The spelling of 1549225152 in words is "one billion, five hundred forty-nine million, two hundred twenty-five thousand, one hundred fifty-two".