1295142520 has 48 divisors (see below), whose sum is σ = 3389842440. Its totient is φ = 444048192.

The previous prime is 1295142517. The next prime is 1295142533. The reversal of 1295142520 is 252415921.

It is a super-2 number, since 2×1295142520² = 3354788294223900800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 328434 + ... + 332353.

Almost surely, 2^1295142520 is an apocalyptic number.

1295142520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1295142520 is an abundant number, since it is smaller than the sum of its proper divisors (2094699920).

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

1295142520 is a wasteful number, since it uses less digits than its factorization.

1295142520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660812 (or 660801 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 1295142520 is about 35988.0885849749. The cubic root of 1295142520 is about 1090.0318482404.

The spelling of 1295142520 in words is "one billion, two hundred ninety-five million, one hundred forty-two thousand, five hundred twenty".