3161522340 has 72 divisors (see below), whose sum is σ = 9945149760. Its totient is φ = 843071328.

The previous prime is 3161522311. The next prime is 3161522369. The reversal of 3161522340 is 432251613.

3161522340 is a `hidden beast` number, since 3 + 1 + 615 + 2 + 2 + 3 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (3161522311) and next prime (3161522369).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 320400 + ... + 330119.

It is an arithmetic number, because the mean of its divisors is an integer number (138127080).

Almost surely, 2^3161522340 is an apocalyptic number.

3161522340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3161522340 is an abundant number, since it is smaller than the sum of its proper divisors (6783627420).

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

3161522340 is a wasteful number, since it uses less digits than its factorization.

3161522340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650543 (or 650529 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 3161522340 is about 56227.4162664443. The cubic root of 3161522340 is about 1467.6823954612.

Adding to 3161522340 its reverse (432251613), we get a palindrome (3593773953).

The spelling of 3161522340 in words is "three billion, one hundred sixty-one million, five hundred twenty-two thousand, three hundred forty".