142223712 has 24 divisors (see below), whose sum is σ = 373337496. Its totient is φ = 47407872.

The previous prime is 142223701. The next prime is 142223723. The reversal of 142223712 is 217322241.

It is an interprime number because it is at equal distance from previous prime (142223701) and next prime (142223723).

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 740653 + ... + 740844.

It is an arithmetic number, because the mean of its divisors is an integer number (15555729).

Almost surely, 2^142223712 is an apocalyptic number.

142223712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142223712 is an abundant number, since it is smaller than the sum of its proper divisors (231113784).

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

142223712 is a wasteful number, since it uses less digits than its factorization.

142223712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481510 (or 1481502 counting only the distinct ones).

The product of its digits is 1344, while the sum is 24.

The square root of 142223712 is about 11925.7583406675. The cubic root of 142223712 is about 521.9841747379.

Adding to 142223712 its reverse (217322241), we get a palindrome (359545953).

The spelling of 142223712 in words is "one hundred forty-two million, two hundred twenty-three thousand, seven hundred twelve".