12155714 has 16 divisors (see below), whose sum is σ = 19625976. Its totient is φ = 5625600.

The previous prime is 12155677. The next prime is 12155723. The reversal of 12155714 is 41755121.

It can be written as a sum of positive squares in 4 ways, for example, as 8602489 + 3553225 = 2933^2 + 1885^2 .

It is a super-2 number, since 2×12155714² = 295522765699592, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 857 + ... + 5004.

Almost surely, 2^12155714 is an apocalyptic number.

12155714 is a deficient number, since it is larger than the sum of its proper divisors (7470262).

12155714 is a wasteful number, since it uses less digits than its factorization.

12155714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5941.

The product of its digits is 1400, while the sum is 26.

The square root of 12155714 is about 3486.5045532740. The cubic root of 12155714 is about 229.9288626881.

The spelling of 12155714 in words is "twelve million, one hundred fifty-five thousand, seven hundred fourteen".