1146621913 has 4 divisors (see below), whose sum is σ = 1155650560. Its totient is φ = 1137593268.

The previous prime is 1146621907. The next prime is 1146621919. The reversal of 1146621913 is 3191266411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1146621907) and next prime (1146621919).

It is a cyclic number.

It is not a de Polignac number, because 1146621913 - 2¹⁷ = 1146490841 is a prime.

It is a super-2 number, since 2×1146621913² = 2629483622743559138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1146621919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4514133 + ... + 4514386.

It is an arithmetic number, because the mean of its divisors is an integer number (288912640).

Almost surely, 2^1146621913 is an apocalyptic number.

It is an amenable number.

1146621913 is a deficient number, since it is larger than the sum of its proper divisors (9028647).

1146621913 is an equidigital number, since it uses as much as digits as its factorization.

1146621913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9028646.

The product of its digits is 7776, while the sum is 34.

The square root of 1146621913 is about 33861.8061095388. The cubic root of 1146621913 is about 1046.6626959136.

The spelling of 1146621913 in words is "one billion, one hundred forty-six million, six hundred twenty-one thousand, nine hundred thirteen".