1312501270 has 8 divisors (see below), whose sum is σ = 2362502304. Its totient is φ = 525000504.

The previous prime is 1312501249. The next prime is 1312501283. The reversal of 1312501270 is 721052131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1312501270² = 3445319167503225800, 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 3 ways as a sum of consecutive naturals, for example, 65625054 + ... + 65625073.

It is an arithmetic number, because the mean of its divisors is an integer number (295312788).

Almost surely, 2^1312501270 is an apocalyptic number.

1312501270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312501270 is a deficient number, since it is larger than the sum of its proper divisors (1050001034).

1312501270 is a wasteful number, since it uses less digits than its factorization.

1312501270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131250134.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 1312501270 is about 36228.4593931346. The cubic root of 1312501270 is about 1094.8801381140.

The spelling of 1312501270 in words is "one billion, three hundred twelve million, five hundred one thousand, two hundred seventy".