1313459690 has 16 divisors (see below), whose sum is σ = 2367315720. Its totient is φ = 524697600.

The previous prime is 1313459687. The next prime is 1313459699. The reversal of 1313459690 is 969543131.

It can be written as a sum of positive squares in 4 ways, for example, as 1141561369 + 171898321 = 33787^2 + 13111^2 .

It is a super-2 number, since 2×1313459690² = 3450352714509792200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1313459699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77711 + ... + 93090.

Almost surely, 2^1313459690 is an apocalyptic number.

1313459690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1313459690 is a deficient number, since it is larger than the sum of its proper divisors (1053856030).

1313459690 is a wasteful number, since it uses less digits than its factorization.

1313459690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171577.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 1313459690 is about 36241.6844255341. The cubic root of 1313459690 is about 1095.1465758763.

The spelling of 1313459690 in words is "one billion, three hundred thirteen million, four hundred fifty-nine thousand, six hundred ninety".