90698151 has 4 divisors (see below), whose sum is σ = 120930872. Its totient is φ = 60465432.

The previous prime is 90698149. The next prime is 90698159. The reversal of 90698151 is 15189609.

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

It is not a de Polignac number, because 90698151 - 2¹ = 90698149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90698159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15116356 + ... + 15116361.

It is an arithmetic number, because the mean of its divisors is an integer number (30232718).

Almost surely, 2^90698151 is an apocalyptic number.

90698151 is a deficient number, since it is larger than the sum of its proper divisors (30232721).

90698151 is a wasteful number, since it uses less digits than its factorization.

90698151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30232720.

The product of its (nonzero) digits is 19440, while the sum is 39.

The square root of 90698151 is about 9523.5576860751. The cubic root of 90698151 is about 449.2962679442.

The spelling of 90698151 in words is "ninety million, six hundred ninety-eight thousand, one hundred fifty-one".