90229142 has 8 divisors (see below), whose sum is σ = 135785496. Its totient is φ = 44967312.

The previous prime is 90229129. The next prime is 90229147. The reversal of 90229142 is 24192209.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90229147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72863 + ... + 74090.

It is an arithmetic number, because the mean of its divisors is an integer number (16973187).

Almost surely, 2^90229142 is an apocalyptic number.

90229142 is a deficient number, since it is larger than the sum of its proper divisors (45556354).

90229142 is a wasteful number, since it uses less digits than its factorization.

90229142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147262.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 90229142 is about 9498.9021470905. The cubic root of 90229142 is about 448.5204775417.

The spelling of 90229142 in words is "ninety million, two hundred twenty-nine thousand, one hundred forty-two".