90136142 has 8 divisors (see below), whose sum is σ = 143157456. Its totient is φ = 42416992.

The previous prime is 90136139. The next prime is 90136153. The reversal of 90136142 is 24163109.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1325498 + ... + 1325565.

It is an arithmetic number, because the mean of its divisors is an integer number (17894682).

Almost surely, 2^90136142 is an apocalyptic number.

90136142 is a deficient number, since it is larger than the sum of its proper divisors (53021314).

90136142 is a wasteful number, since it uses less digits than its factorization.

90136142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2651082.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 90136142 is about 9494.0055824715. The cubic root of 90136142 is about 448.3663265183.

The spelling of 90136142 in words is "ninety million, one hundred thirty-six thousand, one hundred forty-two".