1214115979 has 16 divisors (see below), whose sum is σ = 1356475680. Its totient is φ = 1079930880.

The previous prime is 1214115967. The next prime is 1214116021. The reversal of 1214115979 is 9795114121.

It is a cyclic number.

It is not a de Polignac number, because 1214115979 - 2¹¹ = 1214113931 is a prime.

It is a super-2 number, since 2×1214115979² = 2948155220926256882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1214115919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135519 + ... + 144199.

It is an arithmetic number, because the mean of its divisors is an integer number (84779730).

Almost surely, 2^1214115979 is an apocalyptic number.

1214115979 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1214115979 is a deficient number, since it is larger than the sum of its proper divisors (142359701).

1214115979 is a wasteful number, since it uses less digits than its factorization.

1214115979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9150.

The product of its digits is 22680, while the sum is 40.

The square root of 1214115979 is about 34844.1670728402. The cubic root of 1214115979 is about 1066.8091328049.

The spelling of 1214115979 in words is "one billion, two hundred fourteen million, one hundred fifteen thousand, nine hundred seventy-nine".