331113145 has 16 divisors (see below), whose sum is σ = 438685632. Its totient is φ = 237904960.

The previous prime is 331113143. The next prime is 331113163. The reversal of 331113145 is 541311133.

It is not a de Polignac number, because 331113145 - 2¹ = 331113143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (331113143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31702 + ... + 40831.

It is an arithmetic number, because the mean of its divisors is an integer number (27417852).

Almost surely, 2^331113145 is an apocalyptic number.

It is an amenable number.

331113145 is a deficient number, since it is larger than the sum of its proper divisors (107572487).

331113145 is a wasteful number, since it uses less digits than its factorization.

331113145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72632.

The product of its digits is 540, while the sum is 22.

The square root of 331113145 is about 18196.5146387983. The cubic root of 331113145 is about 691.8184512939.

Adding to 331113145 its reverse (541311133), we get a palindrome (872424278).

The spelling of 331113145 in words is "three hundred thirty-one million, one hundred thirteen thousand, one hundred forty-five".