90120151 has 8 divisors (see below), whose sum is σ = 98455824. Its totient is φ = 81808320.

The previous prime is 90120143. The next prime is 90120161. The reversal of 90120151 is 15102109.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90120151 - 2³ = 90120143 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 (90120101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2475 + ... + 13651.

It is an arithmetic number, because the mean of its divisors is an integer number (12306978).

Almost surely, 2^90120151 is an apocalyptic number.

90120151 is a deficient number, since it is larger than the sum of its proper divisors (8335673).

90120151 is a wasteful number, since it uses less digits than its factorization.

90120151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11921.

The product of its (nonzero) digits is 90, while the sum is 19.

The square root of 90120151 is about 9493.1633821398. The cubic root of 90120151 is about 448.3398101480.

The spelling of 90120151 in words is "ninety million, one hundred twenty thousand, one hundred fifty-one".