102145631140 has 24 divisors (see below), whose sum is σ = 245149515072. Its totient is φ = 35021359200.

The previous prime is 102145631117. The next prime is 102145631173. The reversal of 102145631140 is 41136541201.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 102145631099 and 102145631108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364805686 + ... + 364805965.

It is an arithmetic number, because the mean of its divisors is an integer number (10214563128).

Almost surely, 2^102145631140 is an apocalyptic number.

102145631140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102145631140 is an abundant number, since it is smaller than the sum of its proper divisors (143003883932).

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

102145631140 is a wasteful number, since it uses less digits than its factorization.

102145631140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729611667 (or 729611665 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The spelling of 102145631140 in words is "one hundred two billion, one hundred forty-five million, six hundred thirty-one thousand, one hundred forty".