140115420 has 60 divisors (see below), whose sum is σ = 439552344. Its totient is φ = 37363680.

The previous prime is 140115419. The next prime is 140115431. The reversal of 140115420 is 24511041.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 140115393 and 140115402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 41626 + ... + 44865.

Almost surely, 2^140115420 is an apocalyptic number.

140115420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140115420 is an abundant number, since it is smaller than the sum of its proper divisors (299436924).

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

140115420 is a wasteful number, since it uses less digits than its factorization.

140115420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86512 (or 86501 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 140115420 is about 11837.0359465535. The cubic root of 140115420 is about 519.3920656724.

Adding to 140115420 its reverse (24511041), we get a palindrome (164626461).

The spelling of 140115420 in words is "one hundred forty million, one hundred fifteen thousand, four hundred twenty".