90153469 has 4 divisors (see below), whose sum is σ = 103032544. Its totient is φ = 77274396.

The previous prime is 90153451. The next prime is 90153517. The reversal of 90153469 is 96435109.

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.

It is a cyclic number.

It is not a de Polignac number, because 90153469 - 2¹³ = 90145277 is a prime.

It is a super-2 number, since 2×90153469² = 16255295945467922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90153409) 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, 6439527 + ... + 6439540.

It is an arithmetic number, because the mean of its divisors is an integer number (25758136).

Almost surely, 2^90153469 is an apocalyptic number.

It is an amenable number.

90153469 is a deficient number, since it is larger than the sum of its proper divisors (12879075).

90153469 is a wasteful number, since it uses less digits than its factorization.

90153469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12879074.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 90153469 is about 9494.9180617844. The cubic root of 90153469 is about 448.3950547118.

The spelling of 90153469 in words is "ninety million, one hundred fifty-three thousand, four hundred sixty-nine".