90519147 has 12 divisors (see below), whose sum is σ = 134175720. Its totient is φ = 60313140.

The previous prime is 90519119. The next prime is 90519151. The reversal of 90519147 is 74191509.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not a de Polignac number, because 90519147 - 2⁷ = 90519019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90519167) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48522 + ... + 50352.

It is an arithmetic number, because the mean of its divisors is an integer number (11181310).

Almost surely, 2^90519147 is an apocalyptic number.

90519147 is a deficient number, since it is larger than the sum of its proper divisors (43656573).

90519147 is an frugal number, since it uses more digits than its factorization.

90519147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3671 (or 1834 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 90519147 is about 9514.1550859758. The cubic root of 90519147 is about 449.0004927219. Note that the first 3 decimals are identical.

The spelling of 90519147 in words is "ninety million, five hundred nineteen thousand, one hundred forty-seven".