90612542 has 16 divisors (see below), whose sum is σ = 141320592. Its totient is φ = 43538880.

The previous prime is 90612541. The next prime is 90612547. The reversal of 90612542 is 24521609.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90612541) 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, 2753 + ... + 13740.

It is an arithmetic number, because the mean of its divisors is an integer number (8832537).

Almost surely, 2^90612542 is an apocalyptic number.

90612542 is a deficient number, since it is larger than the sum of its proper divisors (50708050).

90612542 is a wasteful number, since it uses less digits than its factorization.

90612542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16603.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 90612542 is about 9519.0620336250. The cubic root of 90612542 is about 449.1548614878.

The spelling of 90612542 in words is "ninety million, six hundred twelve thousand, five hundred forty-two".