157442873 has 8 divisors (see below), whose sum is σ = 189405120. Its totient is φ = 127848240.

The previous prime is 157442863. The next prime is 157442917. The reversal of 157442873 is 378244751.

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 157442873 - 2²² = 153248569 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 157442873.

It is not an unprimeable number, because it can be changed into a prime (157442833) 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 7 ways as a sum of consecutive naturals, for example, 591758 + ... + 592023.

It is an arithmetic number, because the mean of its divisors is an integer number (23675640).

Almost surely, 2^157442873 is an apocalyptic number.

It is an amenable number.

157442873 is a deficient number, since it is larger than the sum of its proper divisors (31962247).

157442873 is a wasteful number, since it uses less digits than its factorization.

157442873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183807.

The product of its digits is 188160, while the sum is 41.

The square root of 157442873 is about 12547.6241974328. The cubic root of 157442873 is about 539.9758482568.

The spelling of 157442873 in words is "one hundred fifty-seven million, four hundred forty-two thousand, eight hundred seventy-three".