1013149909 has 2 divisors, whose sum is σ = 1013149910. Its totient is φ = 1013149908.

The previous prime is 1013149883. The next prime is 1013149913. The reversal of 1013149909 is 9099413101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 778968100 + 234181809 = 27910^2 + 15303^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013149909 - 2²⁹ = 476278997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1013149309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506574954 + 506574955.

It is an arithmetic number, because the mean of its divisors is an integer number (506574955).

Almost surely, 2^1013149909 is an apocalyptic number.

It is an amenable number.

1013149909 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013149909 is an equidigital number, since it uses as much as digits as its factorization.

1013149909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 37.

The square root of 1013149909 is about 31830.0158498233. The cubic root of 1013149909 is about 1004.3642287992.

The spelling of 1013149909 in words is "one billion, thirteen million, one hundred forty-nine thousand, nine hundred nine".