142175261 has 2 divisors, whose sum is σ = 142175262. Its totient is φ = 142175260.

The previous prime is 142175239. The next prime is 142175281. The reversal of 142175261 is 162571241.

142175261 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 can be written as a sum of positive squares in only one way, i.e., 100120036 + 42055225 = 10006^2 + 6485^2 .

It is a cyclic number.

It is not a de Polignac number, because 142175261 - 2¹⁰ = 142174237 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142175281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71087630 + 71087631.

It is an arithmetic number, because the mean of its divisors is an integer number (71087631).

Almost surely, 2^142175261 is an apocalyptic number.

It is an amenable number.

142175261 is a deficient number, since it is larger than the sum of its proper divisors (1).

142175261 is an equidigital number, since it uses as much as digits as its factorization.

142175261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 29.

The square root of 142175261 is about 11923.7268083431. The cubic root of 142175261 is about 521.9248936533.

The spelling of 142175261 in words is "one hundred forty-two million, one hundred seventy-five thousand, two hundred sixty-one".