1415920139 has 2 divisors, whose sum is σ = 1415920140. Its totient is φ = 1415920138.

The previous prime is 1415920097. The next prime is 1415920237. The reversal of 1415920139 is 9310295141.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1415920139 - 2¹⁶ = 1415854603 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1415920099 and 1415920108.

It is not a weakly prime, because it can be changed into another prime (1415920339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 707960069 + 707960070.

It is an arithmetic number, because the mean of its divisors is an integer number (707960070).

Almost surely, 2^1415920139 is an apocalyptic number.

1415920139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1415920139 is an equidigital number, since it uses as much as digits as its factorization.

1415920139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 1415920139 is about 37628.7142884261. The cubic root of 1415920139 is about 1122.9133704052.

The spelling of 1415920139 in words is "one billion, four hundred fifteen million, nine hundred twenty thousand, one hundred thirty-nine".