90214541 has 2 divisors, whose sum is σ = 90214542. Its totient is φ = 90214540.

The previous prime is 90214519. The next prime is 90214549. The reversal of 90214541 is 14541209.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58461316 + 31753225 = 7646^2 + 5635^2 .

It is a cyclic number.

It is not a de Polignac number, because 90214541 - 2⁶ = 90214477 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90214541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90214549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45107270 + 45107271.

It is an arithmetic number, because the mean of its divisors is an integer number (45107271).

Almost surely, 2^90214541 is an apocalyptic number.

It is an amenable number.

90214541 is a deficient number, since it is larger than the sum of its proper divisors (1).

90214541 is an equidigital number, since it uses as much as digits as its factorization.

90214541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 90214541 is about 9498.1335534935. The cubic root of 90214541 is about 448.4962828428.

The spelling of 90214541 in words is "ninety million, two hundred fourteen thousand, five hundred forty-one".