1672112513 has 4 divisors (see below), whose sum is σ = 1672220628. Its totient is φ = 1672004400.

The previous prime is 1672112483. The next prime is 1672112527. The reversal of 1672112513 is 3152112761.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 500282689 + 1171829824 = 22367^2 + 34232^2 .

It is a cyclic number.

It is not a de Polignac number, because 1672112513 - 2⁸ = 1672112257 is a prime.

It is a super-2 number, since 2×1672112513² = 5591920512262350338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1672112413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26006 + ... + 63407.

It is an arithmetic number, because the mean of its divisors is an integer number (418055157).

Almost surely, 2^1672112513 is an apocalyptic number.

It is an amenable number.

1672112513 is a deficient number, since it is larger than the sum of its proper divisors (108115).

1672112513 is an equidigital number, since it uses as much as digits as its factorization.

1672112513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108114.

The product of its digits is 2520, while the sum is 29.

The square root of 1672112513 is about 40891.4723750564. The cubic root of 1672112513 is about 1186.9210504997.

The spelling of 1672112513 in words is "one billion, six hundred seventy-two million, one hundred twelve thousand, five hundred thirteen".