99494157 has 24 divisors (see below), whose sum is σ = 159645600. Its totient is φ = 54890976.

The previous prime is 99494123. The next prime is 99494173. The reversal of 99494157 is 75149499.

It is not a de Polignac number, because 99494157 - 2¹⁴ = 99477773 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99494117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7407 + ... + 15932.

It is an arithmetic number, because the mean of its divisors is an integer number (6651900).

Almost surely, 2^99494157 is an apocalyptic number.

It is an amenable number.

99494157 is a deficient number, since it is larger than the sum of its proper divisors (60151443).

99494157 is a wasteful number, since it uses less digits than its factorization.

99494157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23385 (or 23378 counting only the distinct ones).

The product of its digits is 408240, while the sum is 48.

The square root of 99494157 is about 9974.6757842047. The cubic root of 99494157 is about 463.3749215929.

The spelling of 99494157 in words is "ninety-nine million, four hundred ninety-four thousand, one hundred fifty-seven".