99154906 has 4 divisors (see below), whose sum is σ = 148732362. Its totient is φ = 49577452.

The previous prime is 99154889. The next prime is 99154921. The reversal of 99154906 is 60945199.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60945199 = 7 ⋅8706457.

It can be written as a sum of positive squares in only one way, i.e., 74563225 + 24591681 = 8635^2 + 4959^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24788725 + ... + 24788728.

Almost surely, 2^99154906 is an apocalyptic number.

99154906 is a deficient number, since it is larger than the sum of its proper divisors (49577456).

99154906 is a wasteful number, since it uses less digits than its factorization.

99154906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49577455.

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 99154906 is about 9957.6556477918. The cubic root of 99154906 is about 462.8476564037.

The spelling of 99154906 in words is "ninety-nine million, one hundred fifty-four thousand, nine hundred six".