161314615 has 64 divisors (see below), whose sum is σ = 261273600. Its totient is φ = 94456320.

The previous prime is 161314577. The next prime is 161314631. The reversal of 161314615 is 516413161.

It is not a de Polignac number, because 161314615 - 2⁹ = 161314103 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 320454 + ... + 320956.

It is an arithmetic number, because the mean of its divisors is an integer number (4082400).

Almost surely, 2^161314615 is an apocalyptic number.

161314615 is a deficient number, since it is larger than the sum of its proper divisors (99958985).

161314615 is a wasteful number, since it uses less digits than its factorization.

161314615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557 (or 543 counting only the distinct ones).

The product of its digits is 2160, while the sum is 28.

The square root of 161314615 is about 12700.9690575168. The cubic root of 161314615 is about 544.3663088928.

Adding to 161314615 its reverse (516413161), we get a palindrome (677727776).

It can be divided in two parts, 1613146 and 15, that added together give a palindrome (1613161).

The spelling of 161314615 in words is "one hundred sixty-one million, three hundred fourteen thousand, six hundred fifteen".