140675431 has 6 divisors (see below), whose sum is σ = 152329200. Its totient is φ = 129854088.

The previous prime is 140675419. The next prime is 140675467. The reversal of 140675431 is 134576041.

It is a de Polignac number, because none of the positive numbers 2^k-140675431 is a prime.

It is a super-2 number, since 2×140675431² = 39579153774071522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140675393 and 140675402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140675471) 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, 416031 + ... + 416368.

It is an arithmetic number, because the mean of its divisors is an integer number (25388200).

Almost surely, 2^140675431 is an apocalyptic number.

140675431 is a deficient number, since it is larger than the sum of its proper divisors (11653769).

140675431 is an equidigital number, since it uses as much as digits as its factorization.

140675431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832425 (or 832412 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 140675431 is about 11860.6673926892. The cubic root of 140675431 is about 520.0831117155.

The spelling of 140675431 in words is "one hundred forty million, six hundred seventy-five thousand, four hundred thirty-one".