162561315 has 32 divisors (see below), whose sum is σ = 299252736. Its totient is φ = 73814400.

The previous prime is 162561281. The next prime is 162561319. The reversal of 162561315 is 513165261.

162561315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 162561315 - 2¹⁵ = 162528547 is a prime.

It is a super-2 number, since 2×162561315² = 52852362269058450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (162561319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10729 + ... + 20981.

It is an arithmetic number, because the mean of its divisors is an integer number (9351648).

Almost surely, 2^162561315 is an apocalyptic number.

162561315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

162561315 is a deficient number, since it is larger than the sum of its proper divisors (136691421).

162561315 is a wasteful number, since it uses less digits than its factorization.

162561315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10419.

The product of its digits is 5400, while the sum is 30.

The square root of 162561315 is about 12749.9535293271. The cubic root of 162561315 is about 545.7650675200.

It can be divided in two parts, 16256 and 1315, that added together give a palindrome (17571).

The spelling of 162561315 in words is "one hundred sixty-two million, five hundred sixty-one thousand, three hundred fifteen".