1253137788 has 72 divisors (see below), whose sum is σ = 3671216640. Its totient is φ = 352991520.

The previous prime is 1253137741. The next prime is 1253137789. The reversal of 1253137788 is 8877313521.

1253137788 is a `hidden beast` number, since 1 + 2 + 531 + 37 + 7 + 88 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253137789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17128 + ... + 52911.

It is an arithmetic number, because the mean of its divisors is an integer number (50989120).

Almost surely, 2^1253137788 is an apocalyptic number.

1253137788 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1253137788 is an abundant number, since it is smaller than the sum of its proper divisors (2418078852).

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

1253137788 is a wasteful number, since it uses less digits than its factorization.

1253137788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70127 (or 70122 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 1253137788 is about 35399.6862697962. The cubic root of 1253137788 is about 1078.1179464390.

The spelling of 1253137788 in words is "one billion, two hundred fifty-three million, one hundred thirty-seven thousand, seven hundred eighty-eight".