157107240 has 96 divisors (see below), whose sum is σ = 513063720. Its totient is φ = 41693184.

The previous prime is 157107193. The next prime is 157107253. The reversal of 157107240 is 42701751.

It can be written as a sum of positive squares in 4 ways, for example, as 55621764 + 101485476 = 7458^2 + 10074^2 .

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 82944 + ... + 84816.

Almost surely, 2^157107240 is an apocalyptic number.

157107240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157107240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256531860).

157107240 is an abundant number, since it is smaller than the sum of its proper divisors (355956480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157107240 is a wasteful number, since it uses less digits than its factorization.

157107240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123 (or 2116 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 157107240 is about 12534.2426975067. The cubic root of 157107240 is about 539.5918726886.

Adding to 157107240 its reverse (42701751), we get a palindrome (199808991).

The spelling of 157107240 in words is "one hundred fifty-seven million, one hundred seven thousand, two hundred forty".