90993141 has 6 divisors (see below), whose sum is σ = 131434550. Its totient is φ = 60662088.

The previous prime is 90993043. The next prime is 90993167. The reversal of 90993141 is 14139909.

It can be written as a sum of positive squares in only one way, i.e., 58844241 + 32148900 = 7671^2 + 5670^2 .

It is not a de Polignac number, because 90993141 - 2⁷ = 90993013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90993096 and 90993105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90993181) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5055166 + ... + 5055183.

Almost surely, 2^90993141 is an apocalyptic number.

It is an amenable number.

90993141 is a deficient number, since it is larger than the sum of its proper divisors (40441409).

90993141 is a wasteful number, since it uses less digits than its factorization.

90993141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10110355 (or 10110352 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 90993141 is about 9539.0324981101. The cubic root of 90993141 is about 449.7828433717.

The spelling of 90993141 in words is "ninety million, nine hundred ninety-three thousand, one hundred forty-one".