1612431393 has 8 divisors (see below), whose sum is σ = 2151993888. Its totient is φ = 1073911584.

The previous prime is 1612431391. The next prime is 1612431413. The reversal of 1612431393 is 3931342161.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1612431393 - 2¹ = 1612431391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1612431391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257055 + ... + 263252.

It is an arithmetic number, because the mean of its divisors is an integer number (268999236).

Almost surely, 2^1612431393 is an apocalyptic number.

It is an amenable number.

1612431393 is a deficient number, since it is larger than the sum of its proper divisors (539562495).

1612431393 is a wasteful number, since it uses less digits than its factorization.

1612431393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521343.

The product of its digits is 11664, while the sum is 33.

The square root of 1612431393 is about 40155.0917443853. The cubic root of 1612431393 is about 1172.6284183687.

The spelling of 1612431393 in words is "one billion, six hundred twelve million, four hundred thirty-one thousand, three hundred ninety-three".