90609151 has 2 divisors, whose sum is σ = 90609152. Its totient is φ = 90609150.

The previous prime is 90609107. The next prime is 90609179. The reversal of 90609151 is 15190609.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90609151 - 2¹¹ = 90607103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90609251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45304575 + 45304576.

It is an arithmetic number, because the mean of its divisors is an integer number (45304576).

Almost surely, 2^90609151 is an apocalyptic number.

90609151 is a deficient number, since it is larger than the sum of its proper divisors (1).

90609151 is an equidigital number, since it uses as much as digits as its factorization.

90609151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2430, while the sum is 31.

The square root of 90609151 is about 9518.8839156699. The cubic root of 90609151 is about 449.1492584992.

The spelling of 90609151 in words is "ninety million, six hundred nine thousand, one hundred fifty-one".