1347364991 has 4 divisors (see below), whose sum is σ = 1539845712. Its totient is φ = 1154884272.

The previous prime is 1347364957. The next prime is 1347365003. The reversal of 1347364991 is 1994637431.

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 1347364991 - 2³⁰ = 273623167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1347364901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96240350 + ... + 96240363.

It is an arithmetic number, because the mean of its divisors is an integer number (384961428).

Almost surely, 2^1347364991 is an apocalyptic number.

1347364991 is a deficient number, since it is larger than the sum of its proper divisors (192480721).

1347364991 is an equidigital number, since it uses as much as digits as its factorization.

1347364991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192480720.

The product of its digits is 489888, while the sum is 47.

The square root of 1347364991 is about 36706.4706965952. The cubic root of 1347364991 is about 1104.4899104163.

The spelling of 1347364991 in words is "one billion, three hundred forty-seven million, three hundred sixty-four thousand, nine hundred ninety-one".