90361541 has 2 divisors, whose sum is σ = 90361542. Its totient is φ = 90361540.

The previous prime is 90361489. The next prime is 90361577. The reversal of 90361541 is 14516309.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61952641 + 28408900 = 7871^2 + 5330^2 .

It is an emirp because it is prime and its reverse (14516309) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90361541 - 2¹⁸ = 90099397 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90361441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45180770 + 45180771.

It is an arithmetic number, because the mean of its divisors is an integer number (45180771).

Almost surely, 2^90361541 is an apocalyptic number.

It is an amenable number.

90361541 is a deficient number, since it is larger than the sum of its proper divisors (1).

90361541 is an equidigital number, since it uses as much as digits as its factorization.

90361541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 90361541 is about 9505.8687661886. The cubic root of 90361541 is about 448.7397512680.

The spelling of 90361541 in words is "ninety million, three hundred sixty-one thousand, five hundred forty-one".