90262143 has 24 divisors (see below), whose sum is σ = 136637280. Its totient is φ = 57309120.

The previous prime is 90262069. The next prime is 90262157. The reversal of 90262143 is 34126209.

It is not a de Polignac number, because 90262143 - 2¹⁴ = 90245759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90262243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54873 + ... + 56493.

It is an arithmetic number, because the mean of its divisors is an integer number (5693220).

Almost surely, 2^90262143 is an apocalyptic number.

90262143 is a deficient number, since it is larger than the sum of its proper divisors (46375137).

90262143 is a wasteful number, since it uses less digits than its factorization.

90262143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919 (or 1916 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 90262143 is about 9500.6390837669. The cubic root of 90262143 is about 448.5751524866.

The spelling of 90262143 in words is "ninety million, two hundred sixty-two thousand, one hundred forty-three".