142872540 has 96 divisors (see below), whose sum is σ = 414704640. Its totient is φ = 36723456.

The previous prime is 142872529. The next prime is 142872547. The reversal of 142872540 is 45278241.

142872540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×142872540⁴ (a number of 34 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142872547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 308349 + ... + 308811.

It is an arithmetic number, because the mean of its divisors is an integer number (4319840).

Almost surely, 2^142872540 is an apocalyptic number.

142872540 is a gapful number since it is divisible by the number (10) 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 142872540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207352320).

142872540 is an abundant number, since it is smaller than the sum of its proper divisors (271832100).

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

142872540 is a wasteful number, since it uses less digits than its factorization.

142872540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651 (or 649 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 142872540 is about 11952.9301846869. The cubic root of 142872540 is about 522.7767388509.

The spelling of 142872540 in words is "one hundred forty-two million, eight hundred seventy-two thousand, five hundred forty".