99151489 has 4 divisors (see below), whose sum is σ = 101569860. Its totient is φ = 96733120.

The previous prime is 99151487. The next prime is 99151513. The reversal of 99151489 is 98415199.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18421264 + 80730225 = 4292^2 + 8985^2 .

It is a cyclic number.

It is not a de Polignac number, because 99151489 - 2¹ = 99151487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99151487) 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, 1209124 + ... + 1209205.

It is an arithmetic number, because the mean of its divisors is an integer number (25392465).

Almost surely, 2^99151489 is an apocalyptic number.

It is an amenable number.

99151489 is a deficient number, since it is larger than the sum of its proper divisors (2418371).

99151489 is a wasteful number, since it uses less digits than its factorization.

99151489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2418370.

The product of its digits is 116640, while the sum is 46.

The square root of 99151489 is about 9957.4840697839. The cubic root of 99151489 is about 462.8423395762.

The spelling of 99151489 in words is "ninety-nine million, one hundred fifty-one thousand, four hundred eighty-nine".