290145142 has 8 divisors (see below), whose sum is σ = 497391696. Its totient is φ = 124347912.

The previous prime is 290145133. The next prime is 290145227. The reversal of 290145142 is 241541092.

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

It is a self number, because there is not a number n which added to its sum of digits gives 290145142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10362313 + ... + 10362340.

It is an arithmetic number, because the mean of its divisors is an integer number (62173962).

Almost surely, 2^290145142 is an apocalyptic number.

290145142 is a deficient number, since it is larger than the sum of its proper divisors (207246554).

290145142 is a wasteful number, since it uses less digits than its factorization.

290145142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20724662.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 290145142 is about 17033.6473487037. The cubic root of 290145142 is about 662.0210028538.

The spelling of 290145142 in words is "two hundred ninety million, one hundred forty-five thousand, one hundred forty-two".