157999300 has 18 divisors (see below), whose sum is σ = 342858698. Its totient is φ = 63199680.

The previous prime is 157999277. The next prime is 157999301. The reversal of 157999300 is 3999751.

It can be written as a sum of positive squares in 3 ways, for example, as 295936 + 157703364 = 544^2 + 12558^2 .

It is not an unprimeable number, because it can be changed into a prime (157999301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 789897 + ... + 790096.

Almost surely, 2^157999300 is an apocalyptic number.

157999300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157999300 is an abundant number, since it is smaller than the sum of its proper divisors (184859398).

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

157999300 is a wasteful number, since it uses less digits than its factorization.

157999300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580007 (or 1580000 counting only the distinct ones).

The product of its (nonzero) digits is 76545, while the sum is 43.

The square root of 157999300 is about 12569.7772454407. Note that the first 3 decimals coincide. The cubic root of 157999300 is about 540.6112192017.

The spelling of 157999300 in words is "one hundred fifty-seven million, nine hundred ninety-nine thousand, three hundred".