157159438 has 4 divisors (see below), whose sum is σ = 235739160. Its totient is φ = 78579718.

The previous prime is 157159433. The next prime is 157159451. The reversal of 157159438 is 834951751.

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

It is a junction number, because it is equal to n+sod(n) for n = 157159394 and 157159403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157159433) 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 as a sum of consecutive naturals, namely, 39289858 + ... + 39289861.

It is an arithmetic number, because the mean of its divisors is an integer number (58934790).

Almost surely, 2^157159438 is an apocalyptic number.

157159438 is a deficient number, since it is larger than the sum of its proper divisors (78579722).

157159438 is an equidigital number, since it uses as much as digits as its factorization.

157159438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78579721.

The product of its digits is 151200, while the sum is 43.

The square root of 157159438 is about 12536.3247405290. The cubic root of 157159438 is about 539.6516248635.

It can be divided in two parts, 1571 and 59438, that added together give a square (61009 = 247²).

The spelling of 157159438 in words is "one hundred fifty-seven million, one hundred fifty-nine thousand, four hundred thirty-eight".