90242651 has 2 divisors, whose sum is σ = 90242652. Its totient is φ = 90242650.

The previous prime is 90242629. The next prime is 90242699. The reversal of 90242651 is 15624209.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90242651 - 2¹⁴ = 90226267 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (90242611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45121325 + 45121326.

It is an arithmetic number, because the mean of its divisors is an integer number (45121326).

Almost surely, 2^90242651 is an apocalyptic number.

90242651 is a deficient number, since it is larger than the sum of its proper divisors (1).

90242651 is an equidigital number, since it uses as much as digits as its factorization.

90242651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 90242651 is about 9499.6132026520. The cubic root of 90242651 is about 448.5428604092.

The spelling of 90242651 in words is "ninety million, two hundred forty-two thousand, six hundred fifty-one".