161351514 has 24 divisors (see below), whose sum is σ = 362544000. Its totient is φ = 53783676.

The previous prime is 161351513. The next prime is 161351549. The reversal of 161351514 is 415153161.

161351514 is a `hidden beast` number, since 16 + 135 + 1 + 514 = 666.

161351514 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161351514² = 52068622140184392, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (161351513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165514 + ... + 166485.

It is an arithmetic number, because the mean of its divisors is an integer number (15106000).

Almost surely, 2^161351514 is an apocalyptic number.

161351514 is an abundant number, since it is smaller than the sum of its proper divisors (201192486).

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

161351514 is an equidigital number, since it uses as much as digits as its factorization.

161351514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332016 (or 332004 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 161351514 is about 12702.4215801555. The cubic root of 161351514 is about 544.4078117269.

The spelling of 161351514 in words is "one hundred sixty-one million, three hundred fifty-one thousand, five hundred fourteen".