140172047 has 2 divisors, whose sum is σ = 140172048. Its totient is φ = 140172046.

The previous prime is 140172041. The next prime is 140172061. The reversal of 140172047 is 740271041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140172047 - 2⁴ = 140172031 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140172041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70086023 + 70086024.

It is an arithmetic number, because the mean of its divisors is an integer number (70086024).

Almost surely, 2^140172047 is an apocalyptic number.

140172047 is a deficient number, since it is larger than the sum of its proper divisors (1).

140172047 is an equidigital number, since it uses as much as digits as its factorization.

140172047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 140172047 is about 11839.4276466390. The cubic root of 140172047 is about 519.4620262168.

The spelling of 140172047 in words is "one hundred forty million, one hundred seventy-two thousand, forty-seven".