140211541 has 2 divisors, whose sum is σ = 140211542. Its totient is φ = 140211540.

The previous prime is 140211523. The next prime is 140211557. The reversal of 140211541 is 145112041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115111441 + 25100100 = 10729^2 + 5010^2 .

It is an emirp because it is prime and its reverse (145112041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140211541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140211521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70105770 + 70105771.

It is an arithmetic number, because the mean of its divisors is an integer number (70105771).

Almost surely, 2^140211541 is an apocalyptic number.

It is an amenable number.

140211541 is a deficient number, since it is larger than the sum of its proper divisors (1).

140211541 is an equidigital number, since it uses as much as digits as its factorization.

140211541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 140211541 is about 11841.0954307446. The cubic root of 140211541 is about 519.5108084270.

Adding to 140211541 its reverse (145112041), we get a palindrome (285323582).

The spelling of 140211541 in words is "one hundred forty million, two hundred eleven thousand, five hundred forty-one".