1612479139 has 2 divisors, whose sum is σ = 1612479140. Its totient is φ = 1612479138.

The previous prime is 1612479133. The next prime is 1612479179. The reversal of 1612479139 is 9319742161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1612479139 - 2¹¹ = 1612477091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1612479095 and 1612479104.

It is not a weakly prime, because it can be changed into another prime (1612479133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806239569 + 806239570.

It is an arithmetic number, because the mean of its divisors is an integer number (806239570).

Almost surely, 2^1612479139 is an apocalyptic number.

1612479139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1612479139 is an equidigital number, since it uses as much as digits as its factorization.

1612479139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 43.

The square root of 1612479139 is about 40155.6862598562. The cubic root of 1612479139 is about 1172.6399925591.

The spelling of 1612479139 in words is "one billion, six hundred twelve million, four hundred seventy-nine thousand, one hundred thirty-nine".