157071507 has 8 divisors (see below), whose sum is σ = 211350480. Its totient is φ = 103753440.

The previous prime is 157071487. The next prime is 157071547. The reversal of 157071507 is 705170751.

157071507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 157071507 - 2⁶ = 157071443 is a prime.

It is a super-2 number, since 2×157071507² = 49342916622502098, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (157071547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239844 + ... + 240497.

It is an arithmetic number, because the mean of its divisors is an integer number (26418810).

Almost surely, 2^157071507 is an apocalyptic number.

157071507 is a deficient number, since it is larger than the sum of its proper divisors (54278973).

157071507 is a wasteful number, since it uses less digits than its factorization.

157071507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480453.

The product of its (nonzero) digits is 8575, while the sum is 33.

The square root of 157071507 is about 12532.8172012521. The cubic root of 157071507 is about 539.5509607222.

The spelling of 157071507 in words is "one hundred fifty-seven million, seventy-one thousand, five hundred seven".