157512122 has 8 divisors (see below), whose sum is σ = 237309696. Its totient is φ = 78408892.

The previous prime is 157512107. The next prime is 157512127. The reversal of 157512122 is 221215751.

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

It is a junction number, because it is equal to n+sod(n) for n = 157512091 and 157512100.

It is not an unprimeable number, because it can be changed into a prime (157512127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173018 + ... + 173925.

It is an arithmetic number, because the mean of its divisors is an integer number (29663712).

Almost surely, 2^157512122 is an apocalyptic number.

157512122 is a deficient number, since it is larger than the sum of its proper divisors (79797574).

157512122 is a wasteful number, since it uses less digits than its factorization.

157512122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347172.

The product of its digits is 1400, while the sum is 26.

The square root of 157512122 is about 12550.3833407590. The cubic root of 157512122 is about 540.0550035422.

Adding to 157512122 its reverse (221215751), we get a palindrome (378727873).

The spelling of 157512122 in words is "one hundred fifty-seven million, five hundred twelve thousand, one hundred twenty-two".