7540091 has 8 divisors (see below), whose sum is σ = 8142960. Its totient is φ = 6940512.

The previous prime is 7540081. The next prime is 7540103. The reversal of 7540091 is 1900457.

7540091 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 7540091 - 2¹⁸ = 7277947 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7540091.

It is not an unprimeable number, because it can be changed into a prime (7540051) 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, 6245 + ... + 7353.

It is an arithmetic number, because the mean of its divisors is an integer number (1017870).

Almost surely, 2^7540091 is an apocalyptic number.

7540091 is a deficient number, since it is larger than the sum of its proper divisors (602869).

7540091 is a wasteful number, since it uses less digits than its factorization.

7540091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 7540091 is about 2745.9226136219. The cubic root of 7540091 is about 196.0915423417.

The spelling of 7540091 in words is "seven million, five hundred forty thousand, ninety-one".