1418921231 has 16 divisors (see below), whose sum is σ = 1747468800. Its totient is φ = 1121953248.

The previous prime is 1418921219. The next prime is 1418921233. The reversal of 1418921231 is 1321298141.

It is not a de Polignac number, because 1418921231 - 2¹⁸ = 1418659087 is a prime.

It is a super-2 number, since 2×1418921231² = 4026674919565110722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1418921233) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 176150 + ... + 184028.

It is an arithmetic number, because the mean of its divisors is an integer number (109216800).

Almost surely, 2^1418921231 is an apocalyptic number.

1418921231 is a deficient number, since it is larger than the sum of its proper divisors (328547569).

1418921231 is a wasteful number, since it uses less digits than its factorization.

1418921231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9878.

The product of its digits is 3456, while the sum is 32.

The square root of 1418921231 is about 37668.5708648470. The cubic root of 1418921231 is about 1123.7061618721.

The spelling of 1418921231 in words is "one billion, four hundred eighteen million, nine hundred twenty-one thousand, two hundred thirty-one".