1612923081 has 32 divisors (see below), whose sum is σ = 2708901888. Its totient is φ = 829232640.

The previous prime is 1612923043. The next prime is 1612923089. The reversal of 1612923081 is 1803292161.

It is not a de Polignac number, because 1612923081 - 2⁷ = 1612922953 is a prime.

It is a super-2 number, since 2×1612923081² = 5203041730445065122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1612923089) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13585 + ... + 58398.

It is an arithmetic number, because the mean of its divisors is an integer number (84653184).

Almost surely, 2^1612923081 is an apocalyptic number.

1612923081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1612923081 is a deficient number, since it is larger than the sum of its proper divisors (1095978807).

1612923081 is a wasteful number, since it uses less digits than its factorization.

1612923081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72101.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 1612923081 is about 40161.2136395304. The cubic root of 1612923081 is about 1172.7475983699.

The spelling of 1612923081 in words is "one billion, six hundred twelve million, nine hundred twenty-three thousand, eighty-one".