142372566 has 80 divisors (see below), whose sum is σ = 366879744. Its totient is φ = 40423536.

The previous prime is 142372561. The next prime is 142372577. The reversal of 142372566 is 665273241.

142372566 is a `hidden beast` number, since 1 + 4 + 23 + 72 + 566 = 666.

It is a super-3 number, since 3×142372566³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142372566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142372561) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 252601 + ... + 253163.

Almost surely, 2^142372566 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142372566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183439872).

142372566 is an abundant number, since it is smaller than the sum of its proper divisors (224507178).

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

142372566 is a wasteful number, since it uses less digits than its factorization.

142372566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807 (or 798 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 142372566 is about 11931.9975695606. The cubic root of 142372566 is about 522.1662173799.

The spelling of 142372566 in words is "one hundred forty-two million, three hundred seventy-two thousand, five hundred sixty-six".