142487895 has 32 divisors (see below), whose sum is σ = 252437760. Its totient is φ = 68048640.

The previous prime is 142487893. The next prime is 142487899. The reversal of 142487895 is 598784241.

It is a happy number.

It is not a de Polignac number, because 142487895 - 2¹ = 142487893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142487893) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4611 + ... + 17499.

It is an arithmetic number, because the mean of its divisors is an integer number (7888680).

Almost surely, 2^142487895 is an apocalyptic number.

142487895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142487895 is a deficient number, since it is larger than the sum of its proper divisors (109949865).

142487895 is a wasteful number, since it uses less digits than its factorization.

142487895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12975.

The product of its digits is 645120, while the sum is 48.

The square root of 142487895 is about 11936.8293528893. The cubic root of 142487895 is about 522.3071730336.

The spelling of 142487895 in words is "one hundred forty-two million, four hundred eighty-seven thousand, eight hundred ninety-five".