157289623 has 8 divisors (see below), whose sum is σ = 159181200. Its totient is φ = 155404800.

The previous prime is 157289597. The next prime is 157289633. The reversal of 157289623 is 326982751.

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

It is a cyclic number.

It is not a de Polignac number, because 157289623 - 2²⁵ = 123735191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157289623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157289633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56928 + ... + 59626.

It is an arithmetic number, because the mean of its divisors is an integer number (19897650).

Almost surely, 2^157289623 is an apocalyptic number.

157289623 is a deficient number, since it is larger than the sum of its proper divisors (1891577).

157289623 is a wasteful number, since it uses less digits than its factorization.

157289623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3377.

The product of its digits is 181440, while the sum is 43.

The square root of 157289623 is about 12541.5159769463. The cubic root of 157289623 is about 539.8005928115.

The spelling of 157289623 in words is "one hundred fifty-seven million, two hundred eighty-nine thousand, six hundred twenty-three".