99254921 has 2 divisors, whose sum is σ = 99254922. Its totient is φ = 99254920.

The previous prime is 99254861. The next prime is 99254923. The reversal of 99254921 is 12945299.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76825225 + 22429696 = 8765^2 + 4736^2 .

It is a cyclic number.

It is not a de Polignac number, because 99254921 - 2²⁶ = 32146057 is a prime.

Together with 99254923, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99254923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49627460 + 49627461.

It is an arithmetic number, because the mean of its divisors is an integer number (49627461).

Almost surely, 2^99254921 is an apocalyptic number.

It is an amenable number.

99254921 is a deficient number, since it is larger than the sum of its proper divisors (1).

99254921 is an equidigital number, since it uses as much as digits as its factorization.

99254921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 41.

The square root of 99254921 is about 9962.6763974346. The cubic root of 99254921 is about 463.0032249463.

The spelling of 99254921 in words is "ninety-nine million, two hundred fifty-four thousand, nine hundred twenty-one".