90272541 has 4 divisors (see below), whose sum is σ = 120363392. Its totient is φ = 60181692.

The previous prime is 90272531. The next prime is 90272561. The reversal of 90272541 is 14527209.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14527209 = 3 ⋅4842403.

It is not a de Polignac number, because 90272541 - 2²¹ = 88175389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90272499 and 90272508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90272531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15045421 + ... + 15045426.

It is an arithmetic number, because the mean of its divisors is an integer number (30090848).

Almost surely, 2^90272541 is an apocalyptic number.

It is an amenable number.

90272541 is a deficient number, since it is larger than the sum of its proper divisors (30090851).

90272541 is a wasteful number, since it uses less digits than its factorization.

90272541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30090850.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 90272541 is about 9501.1862943529. The cubic root of 90272541 is about 448.5923767816.

The spelling of 90272541 in words is "ninety million, two hundred seventy-two thousand, five hundred forty-one".