142725744 has 120 divisors (see below), whose sum is σ = 483406560. Its totient is φ = 38375424.

The previous prime is 142725719. The next prime is 142725749. The reversal of 142725744 is 447527241.

142725744 is a `hidden beast` number, since 14 + 2 + 72 + 574 + 4 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 142725699 and 142725708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142725749) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12972 + ... + 21300.

It is an arithmetic number, because the mean of its divisors is an integer number (4028388).

Almost surely, 2^142725744 is an apocalyptic number.

142725744 is a gapful number since it is divisible by the number (14) 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 142725744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241703280).

142725744 is an abundant number, since it is smaller than the sum of its proper divisors (340680816).

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

142725744 is a wasteful number, since it uses less digits than its factorization.

142725744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8367 (or 8358 counting only the distinct ones).

The product of its digits is 62720, while the sum is 36.

The square root of 142725744 is about 11946.7880202170. The cubic root of 142725744 is about 522.5976332133.

The spelling of 142725744 in words is "one hundred forty-two million, seven hundred twenty-five thousand, seven hundred forty-four".