99190455 has 64 divisors (see below), whose sum is σ = 199449600. Its totient is φ = 41827968.

The previous prime is 99190433. The next prime is 99190459. The reversal of 99190455 is 55409199.

It is a happy number.

It is not a de Polignac number, because 99190455 - 2⁵ = 99190423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99190459) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 66144 + ... + 67626.

It is an arithmetic number, because the mean of its divisors is an integer number (3116400).

Almost surely, 2^99190455 is an apocalyptic number.

99190455 is an abundant number, since it is smaller than the sum of its proper divisors (100259145).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99190455 is a wasteful number, since it uses less digits than its factorization.

99190455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525 (or 1511 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 42.

The square root of 99190455 is about 9959.4404963331. The cubic root of 99190455 is about 462.9029631490.

The spelling of 99190455 in words is "ninety-nine million, one hundred ninety thousand, four hundred fifty-five".