7542491 has 8 divisors (see below), whose sum is σ = 8262000. Its totient is φ = 6828640.

The previous prime is 7542481. The next prime is 7542533. The reversal of 7542491 is 1942457.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7542491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7542461) 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, 1685 + ... + 4233.

It is an arithmetic number, because the mean of its divisors is an integer number (1032750).

Almost surely, 2^7542491 is an apocalyptic number.

7542491 is a deficient number, since it is larger than the sum of its proper divisors (719509).

7542491 is a wasteful number, since it uses less digits than its factorization.

7542491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2829.

The product of its digits is 10080, while the sum is 32.

The square root of 7542491 is about 2746.3595904397. The cubic root of 7542491 is about 196.1123453522.

The spelling of 7542491 in words is "seven million, five hundred forty-two thousand, four hundred ninety-one".