102119730 has 64 divisors (see below), whose sum is σ = 256141440. Its totient is φ = 26023424.

The previous prime is 102119729. The next prime is 102119749. The reversal of 102119730 is 37911201.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 102119730.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92542 + ... + 93638.

It is an arithmetic number, because the mean of its divisors is an integer number (4002210).

Almost surely, 2^102119730 is an apocalyptic number.

102119730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 102119730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128070720).

102119730 is an abundant number, since it is smaller than the sum of its proper divisors (154021710).

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

102119730 is a wasteful number, since it uses less digits than its factorization.

102119730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 102119730 is about 10105.4307181832. The cubic root of 102119730 is about 467.4156176641.

The spelling of 102119730 in words is "one hundred two million, one hundred nineteen thousand, seven hundred thirty".