157451189 has 4 divisors (see below), whose sum is σ = 179944224. Its totient is φ = 134958156.

The previous prime is 157451167. The next prime is 157451191. The reversal of 157451189 is 981154751.

It is a happy number.

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 157451189 - 2²⁰ = 156402613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157451159) 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, 11246507 + ... + 11246520.

It is an arithmetic number, because the mean of its divisors is an integer number (44986056).

Almost surely, 2^157451189 is an apocalyptic number.

It is an amenable number.

157451189 is a deficient number, since it is larger than the sum of its proper divisors (22493035).

157451189 is an equidigital number, since it uses as much as digits as its factorization.

157451189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22493034.

The product of its digits is 50400, while the sum is 41.

The square root of 157451189 is about 12547.9555705302. The cubic root of 157451189 is about 539.9853551127.

The spelling of 157451189 in words is "one hundred fifty-seven million, four hundred fifty-one thousand, one hundred eighty-nine".