140045100 has 144 divisors (see below), whose sum is σ = 441117600. Its totient is φ = 34099200.

The previous prime is 140045093. The next prime is 140045123. The reversal of 140045100 is 1540041.

It is a super-2 number, since 2×140045100² = 39225260068020000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 140045100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 580980 + ... + 581220.

Almost surely, 2^140045100 is an apocalyptic number.

140045100 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 140045100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220558800).

140045100 is an abundant number, since it is smaller than the sum of its proper divisors (301072500).

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

140045100 is a wasteful number, since it uses less digits than its factorization.

140045100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 140045100 is about 11834.0652355816. The cubic root of 140045100 is about 519.3051616951.

Adding to 140045100 its reverse (1540041), we get a palindrome (141585141).

The spelling of 140045100 in words is "one hundred forty million, forty-five thousand, one hundred".