1012113149 has 2 divisors, whose sum is σ = 1012113150. Its totient is φ = 1012113148.

The previous prime is 1012113131. The next prime is 1012113163. The reversal of 1012113149 is 9413112101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 727111225 + 285001924 = 26965^2 + 16882^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012113149 - 2²⁰ = 1011064573 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012113169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506056574 + 506056575.

It is an arithmetic number, because the mean of its divisors is an integer number (506056575).

Almost surely, 2^1012113149 is an apocalyptic number.

It is an amenable number.

1012113149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012113149 is an equidigital number, since it uses as much as digits as its factorization.

1012113149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 1012113149 is about 31813.7257956373. The cubic root of 1012113149 is about 1004.0215220145.

The spelling of 1012113149 in words is "one billion, twelve million, one hundred thirteen thousand, one hundred forty-nine".