1307450491 has 4 divisors (see below), whose sum is σ = 1307872800. Its totient is φ = 1307028184.

The previous prime is 1307450461. The next prime is 1307450519. The reversal of 1307450491 is 1940547031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1307450491 - 2¹⁵ = 1307417723 is a prime.

It is a super-2 number, since 2×1307450491² = 3418853572832282162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1307450411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206476 + ... + 212713.

It is an arithmetic number, because the mean of its divisors is an integer number (326968200).

Almost surely, 2^1307450491 is an apocalyptic number.

1307450491 is a deficient number, since it is larger than the sum of its proper divisors (422309).

1307450491 is an equidigital number, since it uses as much as digits as its factorization.

1307450491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422308.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 1307450491 is about 36158.6848626993. The cubic root of 1307450491 is about 1093.4738902451.

The spelling of 1307450491 in words is "one billion, three hundred seven million, four hundred fifty thousand, four hundred ninety-one".