1355890597 has 4 divisors (see below), whose sum is σ = 1427253280. Its totient is φ = 1284527916.

The previous prime is 1355890583. The next prime is 1355890603. The reversal of 1355890597 is 7950985531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1355890597 - 2²⁷ = 1221672869 is a prime.

It is a super-2 number, since 2×1355890597² = 3676878622066032818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355890537) 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, 35681313 + ... + 35681350.

It is an arithmetic number, because the mean of its divisors is an integer number (356813320).

Almost surely, 2^1355890597 is an apocalyptic number.

It is an amenable number.

1355890597 is a deficient number, since it is larger than the sum of its proper divisors (71362683).

1355890597 is an equidigital number, since it uses as much as digits as its factorization.

1355890597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71362682.

The product of its (nonzero) digits is 1701000, while the sum is 52.

The square root of 1355890597 is about 36822.4197602493. The cubic root of 1355890597 is about 1106.8146094111.

The spelling of 1355890597 in words is "one billion, three hundred fifty-five million, eight hundred ninety thousand, five hundred ninety-seven".