90294137 has 4 divisors (see below), whose sum is σ = 95046480. Its totient is φ = 85541796.

The previous prime is 90294133. The next prime is 90294143. The reversal of 90294137 is 73149209.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90294137 - 2² = 90294133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90294097 and 90294106.

It is not an unprimeable number, because it can be changed into a prime (90294133) 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, 2376143 + ... + 2376180.

It is an arithmetic number, because the mean of its divisors is an integer number (23761620).

Almost surely, 2^90294137 is an apocalyptic number.

It is an amenable number.

90294137 is a deficient number, since it is larger than the sum of its proper divisors (4752343).

90294137 is a wasteful number, since it uses less digits than its factorization.

90294137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4752342.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 90294137 is about 9502.3227160521. The cubic root of 90294137 is about 448.6281463465.

The spelling of 90294137 in words is "ninety million, two hundred ninety-four thousand, one hundred thirty-seven".