354011561 has 24 divisors (see below), whose sum is σ = 385418880. Its totient is φ = 324900576.

The previous prime is 354011531. The next prime is 354011563. The reversal of 354011561 is 165110453.

It is a de Polignac number, because none of the positive numbers 2^k-354011561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 354011561.

It is not an unprimeable number, because it can be changed into a prime (354011563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1796915 + ... + 1797111.

It is an arithmetic number, because the mean of its divisors is an integer number (16059120).

Almost surely, 2^354011561 is an apocalyptic number.

It is an amenable number.

354011561 is a deficient number, since it is larger than the sum of its proper divisors (31407319).

354011561 is a wasteful number, since it uses less digits than its factorization.

354011561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 354011561 is about 18815.1949498271. The cubic root of 354011561 is about 707.4120962762.

The spelling of 354011561 in words is "three hundred fifty-four million, eleven thousand, five hundred sixty-one".