1612145397 has 4 divisors (see below), whose sum is σ = 2149527200. Its totient is φ = 1074763596.

The previous prime is 1612145387. The next prime is 1612145399. The reversal of 1612145397 is 7935412161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1612145397 - 2⁶ = 1612145333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1612145399) 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, 268690897 + ... + 268690902.

It is an arithmetic number, because the mean of its divisors is an integer number (537381800).

Almost surely, 2^1612145397 is an apocalyptic number.

It is an amenable number.

1612145397 is a deficient number, since it is larger than the sum of its proper divisors (537381803).

1612145397 is an equidigital number, since it uses as much as digits as its factorization.

1612145397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537381802.

The product of its digits is 45360, while the sum is 39.

The square root of 1612145397 is about 40151.5304440566. The cubic root of 1612145397 is about 1172.5590848002.

The spelling of 1612145397 in words is "one billion, six hundred twelve million, one hundred forty-five thousand, three hundred ninety-seven".