99207271154 has 4 divisors (see below), whose sum is σ = 148810906734. Its totient is φ = 49603635576.

The previous prime is 99207271153. The next prime is 99207271157. The reversal of 99207271154 is 45117270299.

99207271154 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45117270299 = 109 ⋅413919911.

It can be written as a sum of positive squares in only one way, i.e., 82854744025 + 16352527129 = 287845^2 + 127877^2 .

It is a junction number, because it is equal to n+sod(n) for n = 99207271099 and 99207271108.

It is not an unprimeable number, because it can be changed into a prime (99207271153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24801817787 + ... + 24801817790.

Almost surely, 2^99207271154 is an apocalyptic number.

99207271154 is a deficient number, since it is larger than the sum of its proper divisors (49603635580).

99207271154 is a wasteful number, since it uses less digits than its factorization.

99207271154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49603635579.

The product of its (nonzero) digits is 317520, while the sum is 47.

The spelling of 99207271154 in words is "ninety-nine billion, two hundred seven million, two hundred seventy-one thousand, one hundred fifty-four".