90513619 has 8 divisors (see below), whose sum is σ = 104449280. Its totient is φ = 76829256.

The previous prime is 90513617. The next prime is 90513629. The reversal of 90513619 is 91631509.

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

It is not a de Polignac number, because 90513619 - 2¹ = 90513617 is a prime.

It is a super-2 number, since 2×90513619² = 16385430448954322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90513613) 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, 62049 + ... + 63490.

It is an arithmetic number, because the mean of its divisors is an integer number (13056160).

Almost surely, 2^90513619 is an apocalyptic number.

90513619 is a deficient number, since it is larger than the sum of its proper divisors (13935661).

90513619 is a wasteful number, since it uses less digits than its factorization.

90513619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125649.

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 90513619 is about 9513.8645670411. The cubic root of 90513619 is about 448.9913523896.

The spelling of 90513619 in words is "ninety million, five hundred thirteen thousand, six hundred nineteen".