354890161 has 4 divisors (see below), whose sum is σ = 370320192. Its totient is φ = 339460132.

The previous prime is 354890153. The next prime is 354890167. The reversal of 354890161 is 161098453.

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, and also an emirpimes, since its reverse is a distinct semiprime: 161098453 = 1187 ⋅135719.

It is a cyclic number.

It is not a de Polignac number, because 354890161 - 2³ = 354890153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 354890161.

It is not an unprimeable number, because it can be changed into a prime (354890167) 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, 7714981 + ... + 7715026.

It is an arithmetic number, because the mean of its divisors is an integer number (92580048).

Almost surely, 2^354890161 is an apocalyptic number.

It is an amenable number.

354890161 is a deficient number, since it is larger than the sum of its proper divisors (15430031).

354890161 is a wasteful number, since it uses less digits than its factorization.

354890161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15430030.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 354890161 is about 18838.5286315041. The cubic root of 354890161 is about 707.9968406394.

The spelling of 354890161 in words is "three hundred fifty-four million, eight hundred ninety thousand, one hundred sixty-one".