356021089 has 4 divisors (see below), whose sum is σ = 376963524. Its totient is φ = 335078656.

The previous prime is 356021063. The next prime is 356021111. The reversal of 356021089 is 980120653.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 285880464 + 70140625 = 16908^2 + 8375^2 .

It is a cyclic number.

It is not a de Polignac number, because 356021089 - 2²¹ = 353923937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (356021059) 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, 10471192 + ... + 10471225.

It is an arithmetic number, because the mean of its divisors is an integer number (94240881).

Almost surely, 2^356021089 is an apocalyptic number.

It is an amenable number.

356021089 is a deficient number, since it is larger than the sum of its proper divisors (20942435).

356021089 is a wasteful number, since it uses less digits than its factorization.

356021089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20942434.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 356021089 is about 18868.5211132192. The cubic root of 356021089 is about 708.7481007179.

It can be divided in two parts, 3560 and 21089, that added together give a square (24649 = 157²).

The spelling of 356021089 in words is "three hundred fifty-six million, twenty-one thousand, eighty-nine".