90901163 has 4 divisors (see below), whose sum is σ = 92391408. Its totient is φ = 89410920.

The previous prime is 90901093. The next prime is 90901171. The reversal of 90901163 is 36110909.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90901163 - 2⁸ = 90900907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90901463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 745031 + ... + 745152.

It is an arithmetic number, because the mean of its divisors is an integer number (23097852).

Almost surely, 2^90901163 is an apocalyptic number.

90901163 is a deficient number, since it is larger than the sum of its proper divisors (1490245).

90901163 is a wasteful number, since it uses less digits than its factorization.

90901163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490244.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 90901163 is about 9534.2101403315. The cubic root of 90901163 is about 449.6312419321.

The spelling of 90901163 in words is "ninety million, nine hundred one thousand, one hundred sixty-three".