1468815931 has 4 divisors (see below), whose sum is σ = 1602344664. Its totient is φ = 1335287200.

The previous prime is 1468815917. The next prime is 1468815961. The reversal of 1468815931 is 1395188641.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1468815931 - 2²³ = 1460427323 is a prime.

It is a super-2 number, since 2×1468815931² = 4314840478318793522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1468815961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66764350 + ... + 66764371.

It is an arithmetic number, because the mean of its divisors is an integer number (400586166).

Almost surely, 2^1468815931 is an apocalyptic number.

1468815931 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1468815931 is a deficient number, since it is larger than the sum of its proper divisors (133528733).

1468815931 is a wasteful number, since it uses less digits than its factorization.

1468815931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133528732.

The product of its digits is 207360, while the sum is 46.

The square root of 1468815931 is about 38325.1344550805. The cubic root of 1468815931 is about 1136.7259943387.

The spelling of 1468815931 in words is "one billion, four hundred sixty-eight million, eight hundred fifteen thousand, nine hundred thirty-one".