90391126 has 8 divisors (see below), whose sum is σ = 154956240. Its totient is φ = 38739048.

The previous prime is 90391123. The next prime is 90391153. The reversal of 90391126 is 62119309.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-4 number, since 4×90391126⁴ (a number of 33 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90391123) 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, 3228241 + ... + 3228268.

It is an arithmetic number, because the mean of its divisors is an integer number (19369530).

Almost surely, 2^90391126 is an apocalyptic number.

90391126 is a deficient number, since it is larger than the sum of its proper divisors (64565114).

90391126 is a wasteful number, since it uses less digits than its factorization.

90391126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6456518.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 90391126 is about 9507.4247827685. The cubic root of 90391126 is about 448.7887194344.

It can be divided in two parts, 903 and 91126, that added together give a palindrome (92029).

The spelling of 90391126 in words is "ninety million, three hundred ninety-one thousand, one hundred twenty-six".