160531240 has 32 divisors (see below), whose sum is σ = 373653000. Its totient is φ = 61997824.

The previous prime is 160531201. The next prime is 160531243. The reversal of 160531240 is 42135061.

It can be written as a sum of positive squares in 4 ways, for example, as 88247236 + 72284004 = 9394^2 + 8502^2 .

It is not an unprimeable number, because it can be changed into a prime (160531243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68035 + ... + 70354.

Almost surely, 2^160531240 is an apocalyptic number.

160531240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

160531240 is an abundant number, since it is smaller than the sum of its proper divisors (213121760).

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

160531240 is a wasteful number, since it uses less digits than its factorization.

160531240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138429 (or 138425 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 160531240 is about 12670.0923437835. The cubic root of 160531240 is about 543.4836959067.

The spelling of 160531240 in words is "one hundred sixty million, five hundred thirty-one thousand, two hundred forty".