157707650 has 12 divisors (see below), whose sum is σ = 293336322. Its totient is φ = 63083040.

The previous prime is 157707647. The next prime is 157707661. The reversal of 157707650 is 56707751.

It can be written as a sum of positive squares in 3 ways, for example, as 63792169 + 93915481 = 7987^2 + 9691^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1577027 + ... + 1577126.

Almost surely, 2^157707650 is an apocalyptic number.

157707650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157707650 is a deficient number, since it is larger than the sum of its proper divisors (135628672).

157707650 is a wasteful number, since it uses less digits than its factorization.

157707650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3154165 (or 3154160 counting only the distinct ones).

The product of its (nonzero) digits is 51450, while the sum is 38.

The square root of 157707650 is about 12558.1706470330. The cubic root of 157707650 is about 540.2783772729.

The spelling of 157707650 in words is "one hundred fifty-seven million, seven hundred seven thousand, six hundred fifty".