1313072770 has 16 divisors (see below), whose sum is σ = 2371235328. Its totient is φ = 523517040.

The previous prime is 1313072749. The next prime is 1313072771. The reversal of 1313072770 is 772703131.

It is not an unprimeable number, because it can be changed into a prime (1313072771) 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, 210786 + ... + 216925.

It is an arithmetic number, because the mean of its divisors is an integer number (148202208).

Almost surely, 2^1313072770 is an apocalyptic number.

1313072770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1313072770 is a deficient number, since it is larger than the sum of its proper divisors (1058162558).

1313072770 is a wasteful number, since it uses less digits than its factorization.

1313072770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428025.

The product of its (nonzero) digits is 6174, while the sum is 31.

The square root of 1313072770 is about 36236.3459802448. The cubic root of 1313072770 is about 1095.0390289321.

The spelling of 1313072770 in words is "one billion, three hundred thirteen million, seventy-two thousand, seven hundred seventy".