102290142 has 32 divisors (see below), whose sum is σ = 215691264. Its totient is φ = 32292000.

The previous prime is 102290137. The next prime is 102290143. The reversal of 102290142 is 241092201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102290143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2892 + ... + 14592.

It is an arithmetic number, because the mean of its divisors is an integer number (6740352).

Almost surely, 2^102290142 is an apocalyptic number.

102290142 is an abundant number, since it is smaller than the sum of its proper divisors (113401122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102290142 is a wasteful number, since it uses less digits than its factorization.

102290142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11784.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 102290142 is about 10113.8589074596. The cubic root of 102290142 is about 467.6754726540.

The spelling of 102290142 in words is "one hundred two million, two hundred ninety thousand, one hundred forty-two".