2491501 has 8 divisors (see below), whose sum is σ = 2592000. Its totient is φ = 2392320.

The previous prime is 2491499. The next prime is 2491519. The reversal of 2491501 is 1051942.

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

It is a cyclic number.

It is not a de Polignac number, because 2491501 - 2¹ = 2491499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491001) 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, 5325 + ... + 5773.

It is an arithmetic number, because the mean of its divisors is an integer number (324000).

2^2491501 is an apocalyptic number.

It is an amenable number.

2491501 is a deficient number, since it is larger than the sum of its proper divisors (100499).

2491501 is a wasteful number, since it uses less digits than its factorization.

2491501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 2491501 is about 1578.4489222018. The cubic root of 2491501 is about 135.5669073128.

It can be divided in two parts, 2491 and 501, that added together give a palindrome (2992).

The spelling of 2491501 in words is "two million, four hundred ninety-one thousand, five hundred one".