99157169 has 4 divisors (see below), whose sum is σ = 101266944. Its totient is φ = 97047396.

The previous prime is 99157103. The next prime is 99157193. The reversal of 99157169 is 96175199.

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, and also an emirpimes, since its reverse is a distinct semiprime: 96175199 = 293 ⋅328243.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99157169 is a prime.

It is a super-2 number, since 2×99157169² = 19664288328189122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 2109727 = 99157169 / (9 + 9 + 1 + 5 + 7 + 1 + 6 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99157969) 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, 1054817 + ... + 1054910.

It is an arithmetic number, because the mean of its divisors is an integer number (25316736).

Almost surely, 2^99157169 is an apocalyptic number.

It is an amenable number.

99157169 is a deficient number, since it is larger than the sum of its proper divisors (2109775).

99157169 is a wasteful number, since it uses less digits than its factorization.

99157169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2109774.

The product of its digits is 153090, while the sum is 47.

The square root of 99157169 is about 9957.7692783073. The cubic root of 99157169 is about 462.8511775483.

The spelling of 99157169 in words is "ninety-nine million, one hundred fifty-seven thousand, one hundred sixty-nine".