354148631 has 4 divisors (see below), whose sum is σ = 355983792. Its totient is φ = 352313472.

The previous prime is 354148541. The next prime is 354148637. The reversal of 354148631 is 136841453.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136841453 = 7 ⋅19548779.

It is a cyclic number.

It is not a de Polignac number, because 354148631 - 2²² = 349954327 is a prime.

It is a super-2 number, since 2×354148631² = 250842505678348322, 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 = 354148591 and 354148600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354148637) 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, 917291 + ... + 917676.

It is an arithmetic number, because the mean of its divisors is an integer number (88995948).

Almost surely, 2^354148631 is an apocalyptic number.

354148631 is a deficient number, since it is larger than the sum of its proper divisors (1835161).

354148631 is a wasteful number, since it uses less digits than its factorization.

354148631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835160.

The product of its digits is 34560, while the sum is 35.

The square root of 354148631 is about 18818.8371319803. The cubic root of 354148631 is about 707.5033856339.

The spelling of 354148631 in words is "three hundred fifty-four million, one hundred forty-eight thousand, six hundred thirty-one".