354217145 has 16 divisors (see below), whose sum is σ = 437978880. Its totient is φ = 274869504.

The previous prime is 354217139. The next prime is 354217177. The reversal of 354217145 is 541712453.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-354217145 is a prime.

It is a super-3 number, since 3×354217145³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19886 + ... + 33224.

It is an arithmetic number, because the mean of its divisors is an integer number (27373680).

Almost surely, 2^354217145 is an apocalyptic number.

It is an amenable number.

354217145 is a deficient number, since it is larger than the sum of its proper divisors (83761735).

354217145 is a wasteful number, since it uses less digits than its factorization.

354217145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13504.

The product of its digits is 16800, while the sum is 32.

The square root of 354217145 is about 18820.6574008455. The cubic root of 354217145 is about 707.5490074973.

Adding to 354217145 its reverse (541712453), we get a palindrome (895929598).

The spelling of 354217145 in words is "three hundred fifty-four million, two hundred seventeen thousand, one hundred forty-five".