142190791 has 2 divisors, whose sum is σ = 142190792. Its totient is φ = 142190790.

The previous prime is 142190773. The next prime is 142190801. The reversal of 142190791 is 197091241.

142190791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142190791 - 2⁷ = 142190663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142190491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71095395 + 71095396.

It is an arithmetic number, because the mean of its divisors is an integer number (71095396).

Almost surely, 2^142190791 is an apocalyptic number.

142190791 is a deficient number, since it is larger than the sum of its proper divisors (1).

142190791 is an equidigital number, since it uses as much as digits as its factorization.

142190791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 142190791 is about 11924.3780131292. The cubic root of 142190791 is about 521.9438964869.

The spelling of 142190791 in words is "one hundred forty-two million, one hundred ninety thousand, seven hundred ninety-one".