90955143 has 20 divisors (see below), whose sum is σ = 136459928. Its totient is φ = 60623640.

The previous prime is 90955129. The next prime is 90955171. The reversal of 90955143 is 34155909.

It is not a de Polignac number, because 90955143 - 2⁶ = 90955079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90955098 and 90955107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90950143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17373 + ... + 21993.

Almost surely, 2^90955143 is an apocalyptic number.

90955143 is a deficient number, since it is larger than the sum of its proper divisors (45504785).

90955143 is an frugal number, since it uses more digits than its factorization.

90955143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4648 (or 4624 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 90955143 is about 9537.0405787120. The cubic root of 90955143 is about 449.7202260951.

The spelling of 90955143 in words is "ninety million, nine hundred fifty-five thousand, one hundred forty-three".