1202431249 has 2 divisors, whose sum is σ = 1202431250. Its totient is φ = 1202431248.

The previous prime is 1202431201. The next prime is 1202431261. The reversal of 1202431249 is 9421342021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 860366224 + 342065025 = 29332^2 + 18495^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202431249 - 2⁷ = 1202431121 is a prime.

It is not a weakly prime, because it can be changed into another prime (1202431949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601215624 + 601215625.

It is an arithmetic number, because the mean of its divisors is an integer number (601215625).

Almost surely, 2^1202431249 is an apocalyptic number.

It is an amenable number.

1202431249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202431249 is an equidigital number, since it uses as much as digits as its factorization.

1202431249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1202431249 is about 34676.0904514912. The cubic root of 1202431249 is about 1063.3757482734.

The spelling of 1202431249 in words is "one billion, two hundred two million, four hundred thirty-one thousand, two hundred forty-nine".