142470261 has 12 divisors (see below), whose sum is σ = 206443692. Its totient is φ = 94678656.

The previous prime is 142470187. The next prime is 142470271. The reversal of 142470261 is 162074241.

It can be written as a sum of positive squares in 2 ways, for example, as 17589636 + 124880625 = 4194^2 + 11175^2 .

It is not a de Polignac number, because 142470261 - 2¹⁰ = 142469237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142470271) 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 in 11 ways as a sum of consecutive naturals, for example, 22116 + ... + 27821.

It is an arithmetic number, because the mean of its divisors is an integer number (17203641).

Almost surely, 2^142470261 is an apocalyptic number.

It is an amenable number.

142470261 is a deficient number, since it is larger than the sum of its proper divisors (63973431).

142470261 is a wasteful number, since it uses less digits than its factorization.

142470261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50260 (or 50257 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 142470261 is about 11936.0906916796. The cubic root of 142470261 is about 522.2856256016.

The spelling of 142470261 in words is "one hundred forty-two million, four hundred seventy thousand, two hundred sixty-one".