142040245 has 8 divisors (see below), whose sum is σ = 170560440. Its totient is φ = 113557440.

The previous prime is 142040237. The next prime is 142040267. The reversal of 142040245 is 542040241.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 51581124 + 90459121 = 7182^2 + 9511^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142040245 - 2³ = 142040237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166 + ... + 16855.

It is an arithmetic number, because the mean of its divisors is an integer number (21320055).

Almost surely, 2^142040245 is an apocalyptic number.

It is an amenable number.

142040245 is a deficient number, since it is larger than the sum of its proper divisors (28520195).

142040245 is a wasteful number, since it uses less digits than its factorization.

142040245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18695.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 142040245 is about 11918.0638108713. The cubic root of 142040245 is about 521.7596269036.

Adding to 142040245 its reverse (542040241), we get a palindrome (684080486).

The spelling of 142040245 in words is "one hundred forty-two million, forty thousand, two hundred forty-five".