331354145 has 16 divisors (see below), whose sum is σ = 419106960. Its totient is φ = 251107584.

The previous prime is 331354109. The next prime is 331354159. The reversal of 331354145 is 541453133.

It can be written as a sum of positive squares in 8 ways, for example, as 150544 + 331203601 = 388^2 + 18199^2 .

It is a cyclic number.

It is not a de Polignac number, because 331354145 - 2¹² = 331350049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13874 + ... + 29243.

It is an arithmetic number, because the mean of its divisors is an integer number (26194185).

Almost surely, 2^331354145 is an apocalyptic number.

It is an amenable number.

331354145 is a deficient number, since it is larger than the sum of its proper divisors (87752815).

331354145 is a wasteful number, since it uses less digits than its factorization.

331354145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43204.

The product of its digits is 10800, while the sum is 29.

The square root of 331354145 is about 18203.1355815420. The cubic root of 331354145 is about 691.9862567854.

The spelling of 331354145 in words is "three hundred thirty-one million, three hundred fifty-four thousand, one hundred forty-five".