1149021413 has 2 divisors, whose sum is σ = 1149021414. Its totient is φ = 1149021412.

The previous prime is 1149021359. The next prime is 1149021443. The reversal of 1149021413 is 3141209411.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 888457249 + 260564164 = 29807^2 + 16142^2 .

It is a cyclic number.

It is not a de Polignac number, because 1149021413 - 2⁸ = 1149021157 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 (1149021443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574510706 + 574510707.

It is an arithmetic number, because the mean of its divisors is an integer number (574510707).

Almost surely, 2^1149021413 is an apocalyptic number.

It is an amenable number.

1149021413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1149021413 is an equidigital number, since it uses as much as digits as its factorization.

1149021413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1149021413 is about 33897.2183667038. The cubic root of 1149021413 is about 1047.3922933669.

The spelling of 1149021413 in words is "one billion, one hundred forty-nine million, twenty-one thousand, four hundred thirteen".