1253149079 has 24 divisors (see below), whose sum is σ = 1581284880. Its totient is φ = 984299904.

The previous prime is 1253149069. The next prime is 1253149081. The reversal of 1253149079 is 9709413521.

It is not a de Polignac number, because 1253149079 - 2⁴ = 1253149063 is a prime.

It is a super-2 number, since 2×1253149079² = 3140765228397096482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253149069) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81467 + ... + 95619.

It is an arithmetic number, because the mean of its divisors is an integer number (65886870).

Almost surely, 2^1253149079 is an apocalyptic number.

1253149079 is a deficient number, since it is larger than the sum of its proper divisors (328135801).

1253149079 is a wasteful number, since it uses less digits than its factorization.

1253149079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14319 (or 14312 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 1253149079 is about 35399.8457482515. The cubic root of 1253149079 is about 1078.1211844424.

The spelling of 1253149079 in words is "one billion, two hundred fifty-three million, one hundred forty-nine thousand, seventy-nine".