90146129 has 2 divisors, whose sum is σ = 90146130. Its totient is φ = 90146128.

The previous prime is 90146113. The next prime is 90146153. The reversal of 90146129 is 92164109.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59598400 + 30547729 = 7720^2 + 5527^2 .

It is an emirp because it is prime and its reverse (92164109) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90146129 - 2⁴ = 90146113 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 90146095 and 90146104.

It is not a weakly prime, because it can be changed into another prime (90146029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45073064 + 45073065.

It is an arithmetic number, because the mean of its divisors is an integer number (45073065).

Almost surely, 2^90146129 is an apocalyptic number.

It is an amenable number.

90146129 is a deficient number, since it is larger than the sum of its proper divisors (1).

90146129 is an equidigital number, since it uses as much as digits as its factorization.

90146129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 90146129 is about 9494.5315313606. The cubic root of 90146129 is about 448.3828854296.

The spelling of 90146129 in words is "ninety million, one hundred forty-six thousand, one hundred twenty-nine".