2001502451 has 8 divisors (see below), whose sum is σ = 2159260320. Its totient is φ = 1844286912.

The previous prime is 2001502417. The next prime is 2001502469. The reversal of 2001502451 is 1542051002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2001502451 - 2²² = 1997308147 is a prime.

It is a super-2 number, since 2×2001502451² = 8012024122718014802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001502471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127895 + ... + 142688.

It is an arithmetic number, because the mean of its divisors is an integer number (269907540).

Almost surely, 2^2001502451 is an apocalyptic number.

2001502451 is a deficient number, since it is larger than the sum of its proper divisors (157757869).

2001502451 is a wasteful number, since it uses less digits than its factorization.

2001502451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271165.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 2001502451 is about 44738.1543092694. The cubic root of 2001502451 is about 1260.2364658654.

Adding to 2001502451 its reverse (1542051002), we get a palindrome (3543553453).

The spelling of 2001502451 in words is "two billion, one million, five hundred two thousand, four hundred fifty-one".