1612172051 has 32 divisors (see below), whose sum is σ = 1973514240. Its totient is φ = 1287069696.

The previous prime is 1612172041. The next prime is 1612172057. The reversal of 1612172051 is 1502712161.

It is not a de Polignac number, because 1612172051 - 2¹⁴ = 1612155667 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1612172051.

It is not an unprimeable number, because it can be changed into a prime (1612172057) 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, 1944305 + ... + 1945133.

It is an arithmetic number, because the mean of its divisors is an integer number (61672320).

Almost surely, 2^1612172051 is an apocalyptic number.

1612172051 is a deficient number, since it is larger than the sum of its proper divisors (361342189).

1612172051 is a wasteful number, since it uses less digits than its factorization.

1612172051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 1612172051 is about 40151.8623602941. The cubic root of 1612172051 is about 1172.5655468347.

The spelling of 1612172051 in words is "one billion, six hundred twelve million, one hundred seventy-two thousand, fifty-one".