1304513431 has 8 divisors (see below), whose sum is σ = 1424106320. Its totient is φ = 1187669952.

The previous prime is 1304513429. The next prime is 1304513453. The reversal of 1304513431 is 1343154031.

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

It is a cyclic number.

It is not a de Polignac number, because 1304513431 - 2¹ = 1304513429 is a prime.

It is a super-2 number, since 2×1304513431² = 3403510583318783522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1304513396 and 1304513405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304513131) 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, 686361 + ... + 688258.

It is an arithmetic number, because the mean of its divisors is an integer number (178013290).

Almost surely, 2^1304513431 is an apocalyptic number.

1304513431 is a deficient number, since it is larger than the sum of its proper divisors (119592889).

1304513431 is a wasteful number, since it uses less digits than its factorization.

1304513431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374705.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1304513431 is about 36118.0485491672. The cubic root of 1304513431 is about 1092.6544822192.

Adding to 1304513431 its reverse (1343154031), we get a palindrome (2647667462).

The spelling of 1304513431 in words is "one billion, three hundred four million, five hundred thirteen thousand, four hundred thirty-one".