142857072 has 60 divisors (see below), whose sum is σ = 402906504. Its totient is φ = 47249280.

The previous prime is 142857061. The next prime is 142857073. The reversal of 142857072 is 270758241.

142857072 is a `hidden beast` number, since 14 + 2 + 8 + 570 + 72 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142857073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15078 + ... + 22650.

Almost surely, 2^142857072 is an apocalyptic number.

142857072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142857072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201453252).

142857072 is an abundant number, since it is smaller than the sum of its proper divisors (260049432).

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

142857072 is a wasteful number, since it uses less digits than its factorization.

142857072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7718 (or 7709 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 142857072 is about 11952.2831291766. The cubic root of 142857072 is about 522.7578721454.

The spelling of 142857072 in words is "one hundred forty-two million, eight hundred fifty-seven thousand, seventy-two".