1249686132 has 24 divisors (see below), whose sum is σ = 2917180896. Its totient is φ = 416383968.

The previous prime is 1249686127. The next prime is 1249686143. The reversal of 1249686132 is 2316869421.

1249686132 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8703 + ... + 50745.

It is an arithmetic number, because the mean of its divisors is an integer number (121549204).

Almost surely, 2^1249686132 is an apocalyptic number.

1249686132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1249686132 is an abundant number, since it is smaller than the sum of its proper divisors (1667494764).

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

1249686132 is a wasteful number, since it uses less digits than its factorization.

1249686132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44527 (or 44525 counting only the distinct ones).

The product of its digits is 124416, while the sum is 42.

The square root of 1249686132 is about 35350.9000168313. The cubic root of 1249686132 is about 1077.1271763876.

The spelling of 1249686132 in words is "one billion, two hundred forty-nine million, six hundred eighty-six thousand, one hundred thirty-two".