90519371 has 4 divisors (see below), whose sum is σ = 90642600. Its totient is φ = 90396144.

The previous prime is 90519347. The next prime is 90519379. The reversal of 90519371 is 17391509.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90519371 - 2¹⁴ = 90502987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90519379) 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, 60506 + ... + 61983.

It is an arithmetic number, because the mean of its divisors is an integer number (22660650).

Almost surely, 2^90519371 is an apocalyptic number.

90519371 is a deficient number, since it is larger than the sum of its proper divisors (123229).

90519371 is a wasteful number, since it uses less digits than its factorization.

90519371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123228.

The product of its (nonzero) digits is 8505, while the sum is 35.

The square root of 90519371 is about 9514.1668579020. The cubic root of 90519371 is about 449.0008630893. Note that the first 3 decimals are identical.

The spelling of 90519371 in words is "ninety million, five hundred nineteen thousand, three hundred seventy-one".