140813973 has 6 divisors (see below), whose sum is σ = 203397974. Its totient is φ = 93875976.

The previous prime is 140813963. The next prime is 140813977. The reversal of 140813973 is 379318041.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 140707044 + 106929 = 11862^2 + 327^2 .

It is not a de Polignac number, because 140813973 - 2⁶ = 140813909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140813977) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7822990 + ... + 7823007.

Almost surely, 2^140813973 is an apocalyptic number.

It is an amenable number.

140813973 is a deficient number, since it is larger than the sum of its proper divisors (62584001).

140813973 is a wasteful number, since it uses less digits than its factorization.

140813973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15646003 (or 15646000 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 140813973 is about 11866.5063519134. The cubic root of 140813973 is about 520.2537876072.

The spelling of 140813973 in words is "one hundred forty million, eight hundred thirteen thousand, nine hundred seventy-three".