90141555 has 32 divisors (see below), whose sum is σ = 165312000. Its totient is φ = 41087232.

The previous prime is 90141553. The next prime is 90141559. The reversal of 90141555 is 55514109.

It is not a de Polignac number, because 90141555 - 2¹ = 90141553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90141553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41896 + ... + 43994.

It is an arithmetic number, because the mean of its divisors is an integer number (5166000).

Almost surely, 2^90141555 is an apocalyptic number.

90141555 is a deficient number, since it is larger than the sum of its proper divisors (75170445).

90141555 is a wasteful number, since it uses less digits than its factorization.

90141555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523.

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 90141555 is about 9494.2906528081. The cubic root of 90141555 is about 448.3753016763.

The spelling of 90141555 in words is "ninety million, one hundred forty-one thousand, five hundred fifty-five".