1313877528 has 24 divisors (see below), whose sum is σ = 3558418500. Its totient is φ = 437959152.

The previous prime is 1313877517. The next prime is 1313877529. The reversal of 1313877528 is 8257783131.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313877529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9124078 + ... + 9124221.

Almost surely, 2^1313877528 is an apocalyptic number.

1313877528 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1313877528 is an abundant number, since it is smaller than the sum of its proper divisors (2244540972).

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

1313877528 is a wasteful number, since it uses less digits than its factorization.

1313877528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18248311 (or 18248304 counting only the distinct ones).

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

The square root of 1313877528 is about 36247.4485722788. The cubic root of 1313877528 is about 1095.2626929636.

The spelling of 1313877528 in words is "one billion, three hundred thirteen million, eight hundred seventy-seven thousand, five hundred twenty-eight".