1249921302 has 48 divisors (see below), whose sum is σ = 3001807872. Its totient is φ = 345597840.

The previous prime is 1249921259. The next prime is 1249921391. The reversal of 1249921302 is 2031299421.

It is a super-2 number, since 2×1249921302² = 3124606522386750408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59458 + ... + 77685.

It is an arithmetic number, because the mean of its divisors is an integer number (62537664).

Almost surely, 2^1249921302 is an apocalyptic number.

1249921302 is an abundant number, since it is smaller than the sum of its proper divisors (1751886570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1249921302 is a wasteful number, since it uses less digits than its factorization.

1249921302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137193 (or 137186 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 1249921302 is about 35354.2260840200. The cubic root of 1249921302 is about 1077.1947379147.

The spelling of 1249921302 in words is "one billion, two hundred forty-nine million, nine hundred twenty-one thousand, three hundred two".