90195743 has 4 divisors (see below), whose sum is σ = 98395368. Its totient is φ = 81996120.

The previous prime is 90195733. The next prime is 90195767. The reversal of 90195743 is 34759109.

It is a happy number.

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 90195743 - 2⁸ = 90195487 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90195697 and 90195706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90195733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4099796 + ... + 4099817.

It is an arithmetic number, because the mean of its divisors is an integer number (24598842).

Almost surely, 2^90195743 is an apocalyptic number.

90195743 is a deficient number, since it is larger than the sum of its proper divisors (8199625).

90195743 is a wasteful number, since it uses less digits than its factorization.

90195743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8199624.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 90195743 is about 9497.1439391008. The cubic root of 90195743 is about 448.4651296286.

The spelling of 90195743 in words is "ninety million, one hundred ninety-five thousand, seven hundred forty-three".