90180485 has 8 divisors (see below), whose sum is σ = 108313080. Its totient is φ = 72080064.

The previous prime is 90180473. The next prime is 90180511. The reversal of 90180485 is 58408109.

It can be written as a sum of positive squares in 4 ways, for example, as 1085764 + 89094721 = 1042^2 + 9439^2 .

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 90180485 - 2⁴ = 90180469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1370 + ... + 13499.

It is an arithmetic number, because the mean of its divisors is an integer number (13539135).

Almost surely, 2^90180485 is an apocalyptic number.

It is an amenable number.

90180485 is a deficient number, since it is larger than the sum of its proper divisors (18132595).

90180485 is a wasteful number, since it uses less digits than its factorization.

90180485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16087.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 90180485 is about 9496.3406109933. The cubic root of 90180485 is about 448.4398399397.

The spelling of 90180485 in words is "ninety million, one hundred eighty thousand, four hundred eighty-five".