140312141 has 2 divisors, whose sum is σ = 140312142. Its totient is φ = 140312140.

The previous prime is 140312119. The next prime is 140312173. The reversal of 140312141 is 141213041.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82992100 + 57320041 = 9110^2 + 7571^2 .

It is a cyclic number.

It is not a de Polignac number, because 140312141 - 2¹⁸ = 140049997 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 (140312111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70156070 + 70156071.

It is an arithmetic number, because the mean of its divisors is an integer number (70156071).

Almost surely, 2^140312141 is an apocalyptic number.

It is an amenable number.

140312141 is a deficient number, since it is larger than the sum of its proper divisors (1).

140312141 is an equidigital number, since it uses as much as digits as its factorization.

140312141 is an evil number, because the sum of its binary digits is even.

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

The square root of 140312141 is about 11845.3425868567. The cubic root of 140312141 is about 519.6350261926.

Adding to 140312141 its reverse (141213041), we get a palindrome (281525182).

The spelling of 140312141 in words is "one hundred forty million, three hundred twelve thousand, one hundred forty-one".