331001025 has 24 divisors (see below), whose sum is σ = 558904704. Its totient is φ = 172776000.

The previous prime is 331000973. The next prime is 331001081. The reversal of 331001025 is 520100133.

It is a happy number.

It is not a de Polignac number, because 331001025 - 2¹⁰ = 331000001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 331000995 and 331001013.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43426 + ... + 50475.

It is an arithmetic number, because the mean of its divisors is an integer number (23287696).

Almost surely, 2^331001025 is an apocalyptic number.

It is an amenable number.

331001025 is a deficient number, since it is larger than the sum of its proper divisors (227903679).

331001025 is a wasteful number, since it uses less digits than its factorization.

331001025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93961 (or 93956 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 331001025 is about 18193.4335681861. The cubic root of 331001025 is about 691.7403556915.

Adding to 331001025 its reverse (520100133), we get a palindrome (851101158).

The spelling of 331001025 in words is "three hundred thirty-one million, one thousand, twenty-five".