140201971 has 8 divisors (see below), whose sum is σ = 172556384. Its totient is φ = 110928960.

The previous prime is 140201953. The next prime is 140201983. The reversal of 140201971 is 179102041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140201971 - 2⁵ = 140201939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140201071) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 770250 + ... + 770431.

It is an arithmetic number, because the mean of its divisors is an integer number (21569548).

Almost surely, 2^140201971 is an apocalyptic number.

140201971 is a deficient number, since it is larger than the sum of its proper divisors (32354413).

140201971 is a wasteful number, since it uses less digits than its factorization.

140201971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540701.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 140201971 is about 11840.6913227227. The cubic root of 140201971 is about 519.4989885927.

The spelling of 140201971 in words is "one hundred forty million, two hundred one thousand, nine hundred seventy-one".