142158276 has 72 divisors (see below), whose sum is σ = 391449240. Its totient is φ = 43236864.

The previous prime is 142158271. The next prime is 142158277. The reversal of 142158276 is 672851241.

142158276 is a `hidden beast` number, since 1 + 4 + 2 + 1 + 582 + 76 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 12744900 + 129413376 = 3570^2 + 11376^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 142158276.

It is not an unprimeable number, because it can be changed into a prime (142158271) 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, 39946 + ... + 43358.

It is an arithmetic number, because the mean of its divisors is an integer number (5436795).

Almost surely, 2^142158276 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142158276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195724620).

142158276 is an abundant number, since it is smaller than the sum of its proper divisors (249290964).

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

142158276 is a wasteful number, since it uses less digits than its factorization.

142158276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3525 (or 3520 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 142158276 is about 11923.0145516979. The cubic root of 142158276 is about 521.9041088667.

The spelling of 142158276 in words is "one hundred forty-two million, one hundred fifty-eight thousand, two hundred seventy-six".