157207147 has 4 divisors (see below), whose sum is σ = 157241896. Its totient is φ = 157172400.

The previous prime is 157207129. The next prime is 157207153. The reversal of 157207147 is 741702751.

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 157207147 - 2²³ = 148818539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157207847) 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, 9354 + ... + 20047.

It is an arithmetic number, because the mean of its divisors is an integer number (39310474).

Almost surely, 2^157207147 is an apocalyptic number.

157207147 is a deficient number, since it is larger than the sum of its proper divisors (34749).

157207147 is an equidigital number, since it uses as much as digits as its factorization.

157207147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34748.

The product of its (nonzero) digits is 13720, while the sum is 34.

The square root of 157207147 is about 12538.2274265544. The cubic root of 157207147 is about 539.7062268118.

Adding to 157207147 its reverse (741702751), we get a palindrome (898909898).

The spelling of 157207147 in words is "one hundred fifty-seven million, two hundred seven thousand, one hundred forty-seven".