1152146621 has 2 divisors, whose sum is σ = 1152146622. Its totient is φ = 1152146620.

The previous prime is 1152146609. The next prime is 1152146641. The reversal of 1152146621 is 1266412511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1150905625 + 1240996 = 33925^2 + 1114^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1152146621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1152146641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576073310 + 576073311.

It is an arithmetic number, because the mean of its divisors is an integer number (576073311).

Almost surely, 2^1152146621 is an apocalyptic number.

It is an amenable number.

1152146621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1152146621 is an equidigital number, since it uses as much as digits as its factorization.

1152146621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 29.

The square root of 1152146621 is about 33943.2853595523. The cubic root of 1152146621 is about 1048.3410298390.

The spelling of 1152146621 in words is "one billion, one hundred fifty-two million, one hundred forty-six thousand, six hundred twenty-one".