90408030137 has 8 divisors (see below), whose sum is σ = 95017513920. Its totient is φ = 85855104720.

The previous prime is 90408030073. The next prime is 90408030143. The reversal of 90408030137 is 73103080409.

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

It is not a de Polignac number, because 90408030137 - 2⁶ = 90408030073 is a prime.

It is a super-2 number, since 2×90408030137² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90408030097 and 90408030106.

It is not an unprimeable number, because it can be changed into a prime (90408030437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14136314 + ... + 14142707.

It is an arithmetic number, because the mean of its divisors is an integer number (11877189240).

Almost surely, 2^90408030137 is an apocalyptic number.

It is an amenable number.

90408030137 is a deficient number, since it is larger than the sum of its proper divisors (4609483783).

90408030137 is a wasteful number, since it uses less digits than its factorization.

90408030137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28279183.

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 90408030137 in words is "ninety billion, four hundred eight million, thirty thousand, one hundred thirty-seven".