90781141 has 8 divisors (see below), whose sum is σ = 99212544. Its totient is φ = 82379520.

The previous prime is 90781109. The next prime is 90781147. The reversal of 90781141 is 14118709.

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

It is a cyclic number.

It is not a de Polignac number, because 90781141 - 2⁵ = 90781109 is a prime.

It is a super-2 number, since 2×90781141² = 16482431122523762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90781147) 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, 805 + ... + 13498.

It is an arithmetic number, because the mean of its divisors is an integer number (12401568).

Almost surely, 2^90781141 is an apocalyptic number.

It is an amenable number.

90781141 is a deficient number, since it is larger than the sum of its proper divisors (8431403).

90781141 is a wasteful number, since it uses less digits than its factorization.

90781141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14891.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 90781141 is about 9527.9137800465. The cubic root of 90781141 is about 449.4332634982.

The spelling of 90781141 in words is "ninety million, seven hundred eighty-one thousand, one hundred forty-one".