102782142 has 16 divisors (see below), whose sum is σ = 228404880. Its totient is φ = 34260696.

The previous prime is 102782129. The next prime is 102782149. The reversal of 102782142 is 241287201.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102782149) 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, 951633 + ... + 951740.

It is an arithmetic number, because the mean of its divisors is an integer number (14275305).

Almost surely, 2^102782142 is an apocalyptic number.

102782142 is an abundant number, since it is smaller than the sum of its proper divisors (125622738).

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

102782142 is a wasteful number, since it uses less digits than its factorization.

102782142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903384 (or 1903378 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 102782142 is about 10138.1527903263. The cubic root of 102782142 is about 468.4240896150.

The spelling of 102782142 in words is "one hundred two million, seven hundred eighty-two thousand, one hundred forty-two".