1257511152 has 40 divisors (see below), whose sum is σ = 3250384720. Its totient is φ = 418936320.

The previous prime is 1257511139. The next prime is 1257511159. The reversal of 1257511152 is 2511157521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1257511159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94002 + ... + 106542.

It is an arithmetic number, because the mean of its divisors is an integer number (81259618).

Almost surely, 2^1257511152 is an apocalyptic number.

1257511152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1257511152 is an abundant number, since it is smaller than the sum of its proper divisors (1992873568).

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

1257511152 is a wasteful number, since it uses less digits than its factorization.

1257511152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14641 (or 14635 counting only the distinct ones).

The product of its digits is 3500, while the sum is 30.

The square root of 1257511152 is about 35461.4036947214. The cubic root of 1257511152 is about 1079.3706758833.

Adding to 1257511152 its reverse (2511157521), we get a palindrome (3768668673).

The spelling of 1257511152 in words is "one billion, two hundred fifty-seven million, five hundred eleven thousand, one hundred fifty-two".