142455261 has 64 divisors (see below), whose sum is σ = 227082240. Its totient is φ = 78693120.

The previous prime is 142455253. The next prime is 142455277. The reversal of 142455261 is 162554241.

It is not a de Polignac number, because 142455261 - 2³ = 142455253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142455211) 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 63 ways as a sum of consecutive naturals, for example, 1306875 + ... + 1306983.

It is an arithmetic number, because the mean of its divisors is an integer number (3548160).

Almost surely, 2^142455261 is an apocalyptic number.

It is an amenable number.

142455261 is a deficient number, since it is larger than the sum of its proper divisors (84626979).

142455261 is a wasteful number, since it uses less digits than its factorization.

142455261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226.

The product of its digits is 9600, while the sum is 30.

The square root of 142455261 is about 11935.4623287077. The cubic root of 142455261 is about 522.2672953216.

The spelling of 142455261 in words is "one hundred forty-two million, four hundred fifty-five thousand, two hundred sixty-one".