354018631 has 4 divisors (see below), whose sum is σ = 366226200. Its totient is φ = 341811064.

The previous prime is 354018619. The next prime is 354018649. The reversal of 354018631 is 136810453.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136810453 = 13 ⋅10523881.

It is a cyclic number.

It is not a de Polignac number, because 354018631 - 2¹¹ = 354016583 is a prime.

It is a super-2 number, since 2×354018631² = 250658382190228322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 354018593 and 354018602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354018601) 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, 6103741 + ... + 6103798.

It is an arithmetic number, because the mean of its divisors is an integer number (91556550).

Almost surely, 2^354018631 is an apocalyptic number.

354018631 is a deficient number, since it is larger than the sum of its proper divisors (12207569).

354018631 is a wasteful number, since it uses less digits than its factorization.

354018631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12207568.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 354018631 is about 18815.3828289514. The cubic root of 354018631 is about 707.4168055106.

The spelling of 354018631 in words is "three hundred fifty-four million, eighteen thousand, six hundred thirty-one".