140913864 has 256 divisors, whose sum is σ = 493516800. Its totient is φ = 36267264.

The previous prime is 140913853. The next prime is 140913869. The reversal of 140913864 is 468319041.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (140913869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1316899 + ... + 1317005.

It is an arithmetic number, because the mean of its divisors is an integer number (1927800).

Almost surely, 2^140913864 is an apocalyptic number.

140913864 is a gapful number since it is divisible by the number (14) 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 140913864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246758400).

140913864 is an abundant number, since it is smaller than the sum of its proper divisors (352602936).

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

140913864 is a wasteful number, since it uses less digits than its factorization.

140913864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 140913864 is about 11870.7145530503. The cubic root of 140913864 is about 520.3767782126.

It can be divided in two parts, 14091 and 3864, that added together give a triangular number (17955 = T₁₈₉).

The spelling of 140913864 in words is "one hundred forty million, nine hundred thirteen thousand, eight hundred sixty-four".