157875422 has 4 divisors (see below), whose sum is σ = 236813136. Its totient is φ = 78937710.

The previous prime is 157875407. The next prime is 157875451. The reversal of 157875422 is 224578751.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 157875422.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39468854 + ... + 39468857.

It is an arithmetic number, because the mean of its divisors is an integer number (59203284).

Almost surely, 2^157875422 is an apocalyptic number.

157875422 is a deficient number, since it is larger than the sum of its proper divisors (78937714).

157875422 is an equidigital number, since it uses as much as digits as its factorization.

157875422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78937713.

The product of its digits is 156800, while the sum is 41.

The square root of 157875422 is about 12564.8486660206. The cubic root of 157875422 is about 540.4698950595.

The spelling of 157875422 in words is "one hundred fifty-seven million, eight hundred seventy-five thousand, four hundred twenty-two".