157651563 has 4 divisors (see below), whose sum is σ = 210202088. Its totient is φ = 105101040.

The previous prime is 157651541. The next prime is 157651573. The reversal of 157651563 is 365156751.

157651563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 365156751 = 3 ⋅121718917.

It is not a de Polignac number, because 157651563 - 2¹⁰ = 157650539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157651573) 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, 26275258 + ... + 26275263.

It is an arithmetic number, because the mean of its divisors is an integer number (52550522).

Almost surely, 2^157651563 is an apocalyptic number.

157651563 is a deficient number, since it is larger than the sum of its proper divisors (52550525).

157651563 is an equidigital number, since it uses as much as digits as its factorization.

157651563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52550524.

The product of its digits is 94500, while the sum is 39.

The square root of 157651563 is about 12555.9373604682. The cubic root of 157651563 is about 540.2143216477.

The spelling of 157651563 in words is "one hundred fifty-seven million, six hundred fifty-one thousand, five hundred sixty-three".