157188453 has 4 divisors (see below), whose sum is σ = 209584608. Its totient is φ = 104792300.

The previous prime is 157188413. The next prime is 157188461. The reversal of 157188453 is 354881751.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 157188453 - 2⁶ = 157188389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157188413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26198073 + ... + 26198078.

It is an arithmetic number, because the mean of its divisors is an integer number (52396152).

Almost surely, 2^157188453 is an apocalyptic number.

It is an amenable number.

157188453 is a deficient number, since it is larger than the sum of its proper divisors (52396155).

157188453 is an equidigital number, since it uses as much as digits as its factorization.

157188453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52396154.

The product of its digits is 134400, while the sum is 42.

The square root of 157188453 is about 12537.4819242143. The cubic root of 157188453 is about 539.6848332380.

It can be divided in two parts, 157188 and 453, that added together give a triangular number (157641 = T₅₆₁).

The spelling of 157188453 in words is "one hundred fifty-seven million, one hundred eighty-eight thousand, four hundred fifty-three".