1252961959 has 2 divisors, whose sum is σ = 1252961960. Its totient is φ = 1252961958.

The previous prime is 1252961933. The next prime is 1252961971. The reversal of 1252961959 is 9591692521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1252961959 - 2⁹ = 1252961447 is a prime.

It is a super-2 number, since 2×1252961959² = 3139827341402235362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1252964959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626480979 + 626480980.

It is an arithmetic number, because the mean of its divisors is an integer number (626480980).

Almost surely, 2^1252961959 is an apocalyptic number.

1252961959 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252961959 is an equidigital number, since it uses as much as digits as its factorization.

1252961959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 437400, while the sum is 49.

The square root of 1252961959 is about 35397.2027002135. The cubic root of 1252961959 is about 1078.0675201494.

The spelling of 1252961959 in words is "one billion, two hundred fifty-two million, nine hundred sixty-one thousand, nine hundred fifty-nine".