157620307 has 16 divisors (see below), whose sum is σ = 176783040. Its totient is φ = 139531392.

The previous prime is 157620289. The next prime is 157620313. The reversal of 157620307 is 703026751.

It is not a de Polignac number, because 157620307 - 2¹¹ = 157618259 is a prime.

It is a super-2 number, since 2×157620307² = 49688322357548498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157620347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57858 + ... + 60520.

It is an arithmetic number, because the mean of its divisors is an integer number (11048940).

Almost surely, 2^157620307 is an apocalyptic number.

157620307 is a deficient number, since it is larger than the sum of its proper divisors (19162733).

157620307 is a wasteful number, since it uses less digits than its factorization.

157620307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2862.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 157620307 is about 12554.6926286548. The cubic root of 157620307 is about 540.1786183230.

The spelling of 157620307 in words is "one hundred fifty-seven million, six hundred twenty thousand, three hundred seven".