331543045 has 16 divisors (see below), whose sum is σ = 415642752. Its totient is φ = 253401280.

The previous prime is 331543033. The next prime is 331543057. The reversal of 331543045 is 540345133.

It is an interprime number because it is at equal distance from previous prime (331543033) and next prime (331543057).

It is not a de Polignac number, because 331543045 - 2⁷ = 331542917 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170730 + ... + 172660.

It is an arithmetic number, because the mean of its divisors is an integer number (25977672).

Almost surely, 2^331543045 is an apocalyptic number.

It is an amenable number.

331543045 is a deficient number, since it is larger than the sum of its proper divisors (84099707).

331543045 is a wasteful number, since it uses less digits than its factorization.

331543045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3452.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 331543045 is about 18208.3235087693. The cubic root of 331543045 is about 692.1177287809.

Adding to 331543045 its reverse (540345133), we get a palindrome (871888178).

It can be divided in two parts, 3315 and 43045, that added together give a triangular number (46360 = T₃₀₄).

The spelling of 331543045 in words is "three hundred thirty-one million, five hundred forty-three thousand, forty-five".