90810147 has 8 divisors (see below), whose sum is σ = 123364944. Its totient is φ = 59397728.

The previous prime is 90810143. The next prime is 90810193. The reversal of 90810147 is 74101809.

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 90810147 - 2² = 90810143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90810143) 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, 285408 + ... + 285725.

It is an arithmetic number, because the mean of its divisors is an integer number (15420618).

Almost surely, 2^90810147 is an apocalyptic number.

90810147 is a deficient number, since it is larger than the sum of its proper divisors (32554797).

90810147 is a wasteful number, since it uses less digits than its factorization.

90810147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571189.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 90810147 is about 9529.4358175078. The cubic root of 90810147 is about 449.4811253960.

The spelling of 90810147 in words is "ninety million, eight hundred ten thousand, one hundred forty-seven".