1390342553 has 2 divisors, whose sum is σ = 1390342554. Its totient is φ = 1390342552.

The previous prime is 1390342543. The next prime is 1390342609. The reversal of 1390342553 is 3552430931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1082936464 + 307406089 = 32908^2 + 17533^2 .

It is a cyclic number.

It is not a de Polignac number, because 1390342553 - 2¹² = 1390338457 is a prime.

It is not a weakly prime, because it can be changed into another prime (1390342543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 695171276 + 695171277.

It is an arithmetic number, because the mean of its divisors is an integer number (695171277).

Almost surely, 2^1390342553 is an apocalyptic number.

It is an amenable number.

1390342553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1390342553 is an equidigital number, since it uses as much as digits as its factorization.

1390342553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 35.

The square root of 1390342553 is about 37287.2974751456. The cubic root of 1390342553 is about 1116.1107000088.

The spelling of 1390342553 in words is "one billion, three hundred ninety million, three hundred forty-two thousand, five hundred fifty-three".