140650000 has 120 divisors (see below), whose sum is σ = 355992840. Its totient is φ = 53760000.

The previous prime is 140649997. The next prime is 140650001. The reversal of 140650000 is 56041.

It can be written as a sum of positive squares in 12 ways, for example, as 140564736 + 85264 = 11856^2 + 292^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (140650001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1449952 + ... + 1450048.

It is an arithmetic number, because the mean of its divisors is an integer number (2966607).

Almost surely, 2^140650000 is an apocalyptic number.

140650000 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 140650000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177996420).

140650000 is an abundant number, since it is smaller than the sum of its proper divisors (215342840).

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

140650000 is an frugal number, since it uses more digits than its factorization.

140650000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 140650000 is about 11859.5952713404. The cubic root of 140650000 is about 520.0517699937.

The spelling of 140650000 in words is "one hundred forty million, six hundred fifty thousand".