331374261 has 4 divisors (see below), whose sum is σ = 441832352. Its totient is φ = 220916172.

The previous prime is 331374247. The next prime is 331374311. The reversal of 331374261 is 162473133.

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: 162473133 = 3 ⋅54157711.

It is not a de Polignac number, because 331374261 - 2¹³ = 331366069 is a prime.

It is a super-2 number, since 2×331374261² = 219617801706592242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331374661) 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, 55229041 + ... + 55229046.

It is an arithmetic number, because the mean of its divisors is an integer number (110458088).

Almost surely, 2^331374261 is an apocalyptic number.

It is an amenable number.

331374261 is a deficient number, since it is larger than the sum of its proper divisors (110458091).

331374261 is a wasteful number, since it uses less digits than its factorization.

331374261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110458090.

The product of its digits is 9072, while the sum is 30.

The square root of 331374261 is about 18203.6881153243. The cubic root of 331374261 is about 692.0002596422. Note that the first 3 decimals are identical.

The spelling of 331374261 in words is "three hundred thirty-one million, three hundred seventy-four thousand, two hundred sixty-one".