157549900 has 72 divisors (see below), whose sum is σ = 363882960. Its totient is φ = 59040000.

The previous prime is 157549891. The next prime is 157549907. The reversal of 157549900 is 9945751.

It is not an unprimeable number, because it can be changed into a prime (157549907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 191490 + ... + 192310.

It is an arithmetic number, because the mean of its divisors is an integer number (5053930).

Almost surely, 2^157549900 is an apocalyptic number.

157549900 is a gapful number since it is divisible by the number (10) 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 157549900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181941480).

157549900 is an abundant number, since it is smaller than the sum of its proper divisors (206333060).

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

157549900 is a wasteful number, since it uses less digits than its factorization.

157549900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955 (or 948 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 40.

The square root of 157549900 is about 12551.8883041557. Note that the first 3 decimals coincide. The cubic root of 157549900 is about 540.0981760227.

The spelling of 157549900 in words is "one hundred fifty-seven million, five hundred forty-nine thousand, nine hundred".