1249079125 has 32 divisors (see below), whose sum is σ = 1839052800. Its totient is φ = 828864000.

The previous prime is 1249079123. The next prime is 1249079207. The reversal of 1249079125 is 5219709421.

It is a happy number.

It is not a de Polignac number, because 1249079125 - 2¹ = 1249079123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249079123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4101 + ... + 50149.

It is an arithmetic number, because the mean of its divisors is an integer number (57470400).

Almost surely, 2^1249079125 is an apocalyptic number.

It is an amenable number.

1249079125 is a deficient number, since it is larger than the sum of its proper divisors (589973675).

1249079125 is an equidigital number, since it uses as much as digits as its factorization.

1249079125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46102 (or 46092 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 1249079125 is about 35342.3135207643. The cubic root of 1249079125 is about 1076.9527513572.

The spelling of 1249079125 in words is "one billion, two hundred forty-nine million, seventy-nine thousand, one hundred twenty-five".