102151280 has 240 divisors, whose sum is σ = 317551104. Its totient is φ = 30159360.

The previous prime is 102151279. The next prime is 102151297. The reversal of 102151280 is 82151201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 991709 + ... + 991811.

Almost surely, 2^102151280 is an apocalyptic number.

102151280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102151280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158775552).

102151280 is an abundant number, since it is smaller than the sum of its proper divisors (215399824).

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

102151280 is a wasteful number, since it uses less digits than its factorization.

102151280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 102151280 is about 10106.9916394543. The cubic root of 102151280 is about 467.4637488930.

The spelling of 102151280 in words is "one hundred two million, one hundred fifty-one thousand, two hundred eighty".