247233015 has 48 divisors (see below), whose sum is σ = 445281408. Its totient is φ = 126802368.

The previous prime is 247232981. The next prime is 247233031. The reversal of 247233015 is 510332742.

It is not a de Polignac number, because 247233015 - 2⁸ = 247232759 is a prime.

It is a super-2 number, since 2×247233015² = 122248327411980450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 247233015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 128692 + ... + 130598.

It is an arithmetic number, because the mean of its divisors is an integer number (9276696).

Almost surely, 2^247233015 is an apocalyptic number.

247233015 is a deficient number, since it is larger than the sum of its proper divisors (198048393).

247233015 is a wasteful number, since it uses less digits than its factorization.

247233015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028 (or 2025 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 247233015 is about 15723.6450926622. The cubic root of 247233015 is about 627.6277756548.

Adding to 247233015 its reverse (510332742), we get a palindrome (757565757).

The spelling of 247233015 in words is "two hundred forty-seven million, two hundred thirty-three thousand, fifteen".