142194037 has 2 divisors, whose sum is σ = 142194038. Its totient is φ = 142194036.

The previous prime is 142194029. The next prime is 142194049. The reversal of 142194037 is 730491241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86974276 + 55219761 = 9326^2 + 7431^2 .

It is a cyclic number.

It is not a de Polignac number, because 142194037 - 2³ = 142194029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142134037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71097018 + 71097019.

It is an arithmetic number, because the mean of its divisors is an integer number (71097019).

Almost surely, 2^142194037 is an apocalyptic number.

It is an amenable number.

142194037 is a deficient number, since it is larger than the sum of its proper divisors (1).

142194037 is an equidigital number, since it uses as much as digits as its factorization.

142194037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 142194037 is about 11924.5141200805. The cubic root of 142194037 is about 521.9478681858.

The spelling of 142194037 in words is "one hundred forty-two million, one hundred ninety-four thousand, thirty-seven".