331734913 has 4 divisors (see below), whose sum is σ = 331821828. Its totient is φ = 331648000.

The previous prime is 331734899. The next prime is 331734917. The reversal of 331734913 is 319437133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 319437133 = 23 ⋅13888571.

It can be written as a sum of positive squares in 2 ways, for example, as 38229489 + 293505424 = 6183^2 + 17132^2 .

It is a cyclic number.

It is not a de Polignac number, because 331734913 - 2²¹ = 329637761 is a prime.

It is a super-2 number, since 2×331734913² = 220096105006235138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331734917) 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, 37456 + ... + 45457.

It is an arithmetic number, because the mean of its divisors is an integer number (82955457).

Almost surely, 2^331734913 is an apocalyptic number.

It is an amenable number.

331734913 is a deficient number, since it is larger than the sum of its proper divisors (86915).

331734913 is an equidigital number, since it uses as much as digits as its factorization.

331734913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86914.

The product of its digits is 20412, while the sum is 34.

The square root of 331734913 is about 18213.5914360677. The cubic root of 331734913 is about 692.2512153552.

The spelling of 331734913 in words is "three hundred thirty-one million, seven hundred thirty-four thousand, nine hundred thirteen".