140113280 has 64 divisors (see below), whose sum is σ = 339660000. Its totient is φ = 55259136.

The previous prime is 140113271. The next prime is 140113301. The reversal of 140113280 is 82311041.

It is a tau number, because it is divible by the number of its divisors (64).

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 7 ways as a sum of consecutive naturals, for example, 45221 + ... + 48219.

Almost surely, 2^140113280 is an apocalyptic number.

140113280 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 140113280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169830000).

140113280 is an abundant number, since it is smaller than the sum of its proper divisors (199546720).

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

140113280 is an equidigital number, since it uses as much as digits as its factorization.

140113280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3091 (or 3079 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 140113280 is about 11836.9455519572. The cubic root of 140113280 is about 519.3894214126.

The spelling of 140113280 in words is "one hundred forty million, one hundred thirteen thousand, two hundred eighty".