90720141 has 8 divisors (see below), whose sum is σ = 121009440. Its totient is φ = 60455472.

The previous prime is 90720139. The next prime is 90720151. The reversal of 90720141 is 14102709.

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

It is not a de Polignac number, because 90720141 - 2¹ = 90720139 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90720101) 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 7 ways as a sum of consecutive naturals, for example, 5706 + ... + 14628.

It is an arithmetic number, because the mean of its divisors is an integer number (15126180).

Almost surely, 2^90720141 is an apocalyptic number.

It is an amenable number.

90720141 is a deficient number, since it is larger than the sum of its proper divisors (30289299).

90720141 is a wasteful number, since it uses less digits than its factorization.

90720141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12315.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 90720141 is about 9524.7121216339. The cubic root of 90720141 is about 449.3325760220.

The spelling of 90720141 in words is "ninety million, seven hundred twenty thousand, one hundred forty-one".