142215048 has 32 divisors (see below), whose sum is σ = 395042400. Its totient is φ = 47404944.

The previous prime is 142215037. The next prime is 142215083. The reversal of 142215048 is 840512241.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328986 + ... + 329417.

It is an arithmetic number, because the mean of its divisors is an integer number (12345075).

Almost surely, 2^142215048 is an apocalyptic number.

142215048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

142215048 is an abundant number, since it is smaller than the sum of its proper divisors (252827352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142215048 is a wasteful number, since it uses less digits than its factorization.

142215048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658418 (or 658408 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 142215048 is about 11925.3950877948. The cubic root of 142215048 is about 521.9735750925.

Adding to 142215048 its reverse (840512241), we get a palindrome (982727289).

The spelling of 142215048 in words is "one hundred forty-two million, two hundred fifteen thousand, forty-eight".