1252834691 has 2 divisors, whose sum is σ = 1252834692. Its totient is φ = 1252834690.

The previous prime is 1252834643. The next prime is 1252834717. The reversal of 1252834691 is 1964382521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1252834691 - 2¹⁸ = 1252572547 is a prime.

It is not a weakly prime, because it can be changed into another prime (1252834621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626417345 + 626417346.

It is an arithmetic number, because the mean of its divisors is an integer number (626417346).

Almost surely, 2^1252834691 is an apocalyptic number.

1252834691 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252834691 is an equidigital number, since it uses as much as digits as its factorization.

1252834691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 41.

The square root of 1252834691 is about 35395.4049418848. The cubic root of 1252834691 is about 1078.0310178061.

The spelling of 1252834691 in words is "one billion, two hundred fifty-two million, eight hundred thirty-four thousand, six hundred ninety-one".