90150001 has 2 divisors, whose sum is σ = 90150002. Its totient is φ = 90150000.

The previous prime is 90149989. The next prime is 90150007. The reversal of 90150001 is 10005109.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85840225 + 4309776 = 9265^2 + 2076^2 .

It is a cyclic number.

It is not a de Polignac number, because 90150001 - 2¹⁵ = 90117233 is a prime.

It is not a weakly prime, because it can be changed into another prime (90150007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45075000 + 45075001.

It is an arithmetic number, because the mean of its divisors is an integer number (45075001).

Almost surely, 2^90150001 is an apocalyptic number.

It is an amenable number.

90150001 is a deficient number, since it is larger than the sum of its proper divisors (1).

90150001 is an equidigital number, since it uses as much as digits as its factorization.

90150001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45, while the sum is 16.

The square root of 90150001 is about 9494.7354360193. The cubic root of 90150001 is about 448.3893050570.

The spelling of 90150001 in words is "ninety million, one hundred fifty thousand, one".