1202494639 has 2 divisors, whose sum is σ = 1202494640. Its totient is φ = 1202494638.

The previous prime is 1202494603. The next prime is 1202494663. The reversal of 1202494639 is 9364942021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1202494639 - 2⁷ = 1202494511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202494939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601247319 + 601247320.

It is an arithmetic number, because the mean of its divisors is an integer number (601247320).

Almost surely, 2^1202494639 is an apocalyptic number.

1202494639 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202494639 is an equidigital number, since it uses as much as digits as its factorization.

1202494639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 1202494639 is about 34677.0044698212. The cubic root of 1202494639 is about 1063.3944343603.

The spelling of 1202494639 in words is "one billion, two hundred two million, four hundred ninety-four thousand, six hundred thirty-nine".