1152621251 has 2 divisors, whose sum is σ = 1152621252. Its totient is φ = 1152621250.

The previous prime is 1152621229. The next prime is 1152621257. The reversal of 1152621251 is 1521262511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1152621251 - 2²⁶ = 1085512387 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1152621251.

It is not a weakly prime, because it can be changed into another prime (1152621257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576310625 + 576310626.

It is an arithmetic number, because the mean of its divisors is an integer number (576310626).

Almost surely, 2^1152621251 is an apocalyptic number.

1152621251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1152621251 is an equidigital number, since it uses as much as digits as its factorization.

1152621251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1200, while the sum is 26.

The square root of 1152621251 is about 33950.2761549888. The cubic root of 1152621251 is about 1048.4849657420.

Adding to 1152621251 its reverse (1521262511), we get a palindrome (2673883762).

The spelling of 1152621251 in words is "one billion, one hundred fifty-two million, six hundred twenty-one thousand, two hundred fifty-one".