102290140 has 12 divisors (see below), whose sum is σ = 214809336. Its totient is φ = 40916048.

The previous prime is 102290137. The next prime is 102290143. The reversal of 102290140 is 41092201.

It is an interprime number because it is at equal distance from previous prime (102290137) and next prime (102290143).

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2557234 + ... + 2557273.

It is an arithmetic number, because the mean of its divisors is an integer number (17900778).

Almost surely, 2^102290140 is an apocalyptic number.

102290140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102290140 is an abundant number, since it is smaller than the sum of its proper divisors (112519196).

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

102290140 is a wasteful number, since it uses less digits than its factorization.

102290140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5114516 (or 5114514 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 102290140 is about 10113.8588085854. The cubic root of 102290140 is about 467.6754696060.

The spelling of 102290140 in words is "one hundred two million, two hundred ninety thousand, one hundred forty".