1657139483 has 2 divisors, whose sum is σ = 1657139484. Its totient is φ = 1657139482.

The previous prime is 1657139423. The next prime is 1657139509. The reversal of 1657139483 is 3849317561.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (3849317561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1657139483 - 2⁸ = 1657139227 is a prime.

It is a super-2 number, since 2×1657139483² = 5492222532235014578, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1657139423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 828569741 + 828569742.

It is an arithmetic number, because the mean of its divisors is an integer number (828569742).

Almost surely, 2^1657139483 is an apocalyptic number.

1657139483 is a deficient number, since it is larger than the sum of its proper divisors (1).

1657139483 is an equidigital number, since it uses as much as digits as its factorization.

1657139483 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 47.

The square root of 1657139483 is about 40707.9781246871. The cubic root of 1657139483 is about 1183.3676380630.

The spelling of 1657139483 in words is "one billion, six hundred fifty-seven million, one hundred thirty-nine thousand, four hundred eighty-three".