2001501454 has 4 divisors (see below), whose sum is σ = 3002252184. Its totient is φ = 1000750726.

The previous prime is 2001501433. The next prime is 2001501493. The reversal of 2001501454 is 4541051002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4541051002 = 2 ⋅2270525501.

It is a super-2 number, since 2×2001501454² = 8012016140728228232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500375362 + ... + 500375365.

It is an arithmetic number, because the mean of its divisors is an integer number (750563046).

Almost surely, 2^2001501454 is an apocalyptic number.

2001501454 is a deficient number, since it is larger than the sum of its proper divisors (1000750730).

2001501454 is a wasteful number, since it uses less digits than its factorization.

2001501454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000750729.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 2001501454 is about 44738.1431666537. The cubic root of 2001501454 is about 1260.2362566133.

Adding to 2001501454 its reverse (4541051002), we get a palindrome (6542552456).

The spelling of 2001501454 in words is "two billion, one million, five hundred one thousand, four hundred fifty-four".