90540319 has 2 divisors, whose sum is σ = 90540320. Its totient is φ = 90540318.

The previous prime is 90540313. The next prime is 90540337. The reversal of 90540319 is 91304509.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90540319 - 2¹¹ = 90538271 is a prime.

It is a super-2 number, since 2×90540319² = 16395098729243522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90540313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45270159 + 45270160.

It is an arithmetic number, because the mean of its divisors is an integer number (45270160).

Almost surely, 2^90540319 is an apocalyptic number.

90540319 is a deficient number, since it is larger than the sum of its proper divisors (1).

90540319 is an equidigital number, since it uses as much as digits as its factorization.

90540319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 90540319 is about 9515.2676788412. The cubic root of 90540319 is about 449.0354963562.

The spelling of 90540319 in words is "ninety million, five hundred forty thousand, three hundred nineteen".