140211431 has 8 divisors (see below), whose sum is σ = 151191600. Its totient is φ = 129591360.

The previous prime is 140211373. The next prime is 140211437. The reversal of 140211431 is 134112041.

It is a happy number.

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 140211431 - 2¹⁴ = 140195047 is a prime.

It is a super-2 number, since 2×140211431² = 39318490766135522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140211437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89216 + ... + 90773.

It is an arithmetic number, because the mean of its divisors is an integer number (18898950).

Almost surely, 2^140211431 is an apocalyptic number.

140211431 is a deficient number, since it is larger than the sum of its proper divisors (10980169).

140211431 is a wasteful number, since it uses less digits than its factorization.

140211431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180049.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 140211431 is about 11841.0907859031. The cubic root of 140211431 is about 519.5106725699.

Adding to 140211431 its reverse (134112041), we get a palindrome (274323472).

The spelling of 140211431 in words is "one hundred forty million, two hundred eleven thousand, four hundred thirty-one".