142672211749 has 2 divisors, whose sum is σ = 142672211750. Its totient is φ = 142672211748.

The previous prime is 142672211723. The next prime is 142672211761. The reversal of 142672211749 is 947112276241.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79126877025 + 63545334724 = 281295^2 + 252082^2 .

It is a cyclic number.

It is not a de Polignac number, because 142672211749 - 2⁷ = 142672211621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142672211699 and 142672211708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142672211849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71336105874 + 71336105875.

It is an arithmetic number, because the mean of its divisors is an integer number (71336105875).

Almost surely, 2^142672211749 is an apocalyptic number.

It is an amenable number.

142672211749 is a deficient number, since it is larger than the sum of its proper divisors (1).

142672211749 is an equidigital number, since it uses as much as digits as its factorization.

142672211749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 46.

The spelling of 142672211749 in words is "one hundred forty-two billion, six hundred seventy-two million, two hundred eleven thousand, seven hundred forty-nine".