142177207 has 2 divisors, whose sum is σ = 142177208. Its totient is φ = 142177206.

The previous prime is 142177163. The next prime is 142177223. The reversal of 142177207 is 702771241.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142177207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142177507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71088603 + 71088604.

It is an arithmetic number, because the mean of its divisors is an integer number (71088604).

Almost surely, 2^142177207 is an apocalyptic number.

142177207 is a deficient number, since it is larger than the sum of its proper divisors (1).

142177207 is an equidigital number, since it uses as much as digits as its factorization.

142177207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5488, while the sum is 31.

The square root of 142177207 is about 11923.8084100676. The cubic root of 142177207 is about 521.9272748955.

The spelling of 142177207 in words is "one hundred forty-two million, one hundred seventy-seven thousand, two hundred seven".