102251430 has 64 divisors (see below), whose sum is σ = 288722880. Its totient is φ = 25661952.

The previous prime is 102251411. The next prime is 102251437. The reversal of 102251430 is 34152201.

102251430 is a `hidden beast` number, since 10 + 225 + 1 + 430 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102251437) 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 31 ways as a sum of consecutive naturals, for example, 6549 + ... + 15728.

It is an arithmetic number, because the mean of its divisors is an integer number (4511295).

Almost surely, 2^102251430 is an apocalyptic number.

102251430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102251430 is an abundant number, since it is smaller than the sum of its proper divisors (186471450).

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

102251430 is a wasteful number, since it uses less digits than its factorization.

102251430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22310 (or 22304 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 102251430 is about 10111.9449167804. The cubic root of 102251430 is about 467.6164674982.

The spelling of 102251430 in words is "one hundred two million, two hundred fifty-one thousand, four hundred thirty".