142248456 has 48 divisors (see below), whose sum is σ = 440294400. Its totient is φ = 40642272.

The previous prime is 142248439. The next prime is 142248473. The reversal of 142248456 is 654842241.

It is an interprime number because it is at equal distance from previous prime (142248439) and next prime (142248473).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 142248456.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140616 + ... + 141623.

It is an arithmetic number, because the mean of its divisors is an integer number (9172800).

Almost surely, 2^142248456 is an apocalyptic number.

It is an amenable number.

142248456 is an abundant number, since it is smaller than the sum of its proper divisors (298045944).

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

142248456 is a wasteful number, since it uses less digits than its factorization.

142248456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282258 (or 282251 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 142248456 is about 11926.7957138537. The cubic root of 142248456 is about 522.0144444851.

The spelling of 142248456 in words is "one hundred forty-two million, two hundred forty-eight thousand, four hundred fifty-six".