90561127 has 2 divisors, whose sum is σ = 90561128. Its totient is φ = 90561126.

The previous prime is 90561109. The next prime is 90561167. The reversal of 90561127 is 72116509.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90561127 - 2¹⁵ = 90528359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90561167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45280563 + 45280564.

It is an arithmetic number, because the mean of its divisors is an integer number (45280564).

Almost surely, 2^90561127 is an apocalyptic number.

90561127 is a deficient number, since it is larger than the sum of its proper divisors (1).

90561127 is an equidigital number, since it uses as much as digits as its factorization.

90561127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 90561127 is about 9516.3610166912. The cubic root of 90561127 is about 449.0698928735.

The spelling of 90561127 in words is "ninety million, five hundred sixty-one thousand, one hundred twenty-seven".