140570231 has 4 divisors (see below), whose sum is σ = 140667264. Its totient is φ = 140473200.

The previous prime is 140570203. The next prime is 140570233. The reversal of 140570231 is 132075041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140570231 - 2⁶ = 140570167 is a prime.

It is a super-4 number, since 4×140570231⁴ (a number of 34 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140570197 and 140570206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140570233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46310 + ... + 49251.

It is an arithmetic number, because the mean of its divisors is an integer number (35166816).

Almost surely, 2^140570231 is an apocalyptic number.

140570231 is a deficient number, since it is larger than the sum of its proper divisors (97033).

140570231 is an equidigital number, since it uses as much as digits as its factorization.

140570231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97032.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 140570231 is about 11856.2317369390. The cubic root of 140570231 is about 519.9534364124.

The spelling of 140570231 in words is "one hundred forty million, five hundred seventy thousand, two hundred thirty-one".