1357047983 has 4 divisors (see below), whose sum is σ = 1357300968. Its totient is φ = 1356795000.

The previous prime is 1357047973. The next prime is 1357047997. The reversal of 1357047983 is 3897407531.

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 1357047983 - 2²² = 1352853679 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 (1357047973) 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, 118268 + ... + 129233.

It is an arithmetic number, because the mean of its divisors is an integer number (339325242).

Almost surely, 2^1357047983 is an apocalyptic number.

1357047983 is a deficient number, since it is larger than the sum of its proper divisors (252985).

1357047983 is an equidigital number, since it uses as much as digits as its factorization.

1357047983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252984.

The product of its (nonzero) digits is 635040, while the sum is 47.

The square root of 1357047983 is about 36838.1321866351. The cubic root of 1357047983 is about 1107.1294448950.

The spelling of 1357047983 in words is "one billion, three hundred fifty-seven million, forty-seven thousand, nine hundred eighty-three".