157845707 has 4 divisors (see below), whose sum is σ = 162937536. Its totient is φ = 152753880.

The previous prime is 157845691. The next prime is 157845739. The reversal of 157845707 is 707548751.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 157845707 - 2⁴ = 157845691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157845007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2545868 + ... + 2545929.

It is an arithmetic number, because the mean of its divisors is an integer number (40734384).

Almost surely, 2^157845707 is an apocalyptic number.

157845707 is a deficient number, since it is larger than the sum of its proper divisors (5091829).

157845707 is an equidigital number, since it uses as much as digits as its factorization.

157845707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5091828.

The product of its (nonzero) digits is 274400, while the sum is 44.

The square root of 157845707 is about 12563.6661448798. Note that the first 3 decimals coincide. The cubic root of 157845707 is about 540.4359842066.

The spelling of 157845707 in words is "one hundred fifty-seven million, eight hundred forty-five thousand, seven hundred seven".