140215741 has 2 divisors, whose sum is σ = 140215742. Its totient is φ = 140215740.

The previous prime is 140215739. The next prime is 140215753. The reversal of 140215741 is 147512041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138156516 + 2059225 = 11754^2 + 1435^2 .

It is a cyclic number.

It is not a de Polignac number, because 140215741 - 2¹ = 140215739 is a prime.

Together with 140215739, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140212741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70107870 + 70107871.

It is an arithmetic number, because the mean of its divisors is an integer number (70107871).

Almost surely, 2^140215741 is an apocalyptic number.

It is an amenable number.

140215741 is a deficient number, since it is larger than the sum of its proper divisors (1).

140215741 is an equidigital number, since it uses as much as digits as its factorization.

140215741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 140215741 is about 11841.2727778732. The cubic root of 140215741 is about 519.5159956453.

Adding to 140215741 its reverse (147512041), we get a palindrome (287727782).

The spelling of 140215741 in words is "one hundred forty million, two hundred fifteen thousand, seven hundred forty-one".