142571187396 has 135 divisors (see below), whose sum is σ = 409887084607. Its totient is φ = 43180734960.

The previous prime is 142571187383. The next prime is 142571187401. The reversal of 142571187396 is 693781175241.

The square root of 142571187396 is 377586.

It is a perfect power (a square), and thus also a powerful number.

142571187396 is a `hidden beast` number, since 1 + 4 + 2 + 5 + 71 + 187 + 396 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 74761075 + ... + 74762981.

Almost surely, 2^142571187396 is an apocalyptic number.

142571187396 is the 377586-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142571187396

142571187396 is an abundant number, since it is smaller than the sum of its proper divisors (267315897211).

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

142571187396 is an equidigital number, since it uses as much as digits as its factorization.

142571187396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3852 (or 1923 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 54.

The spelling of 142571187396 in words is "one hundred forty-two billion, five hundred seventy-one million, one hundred eighty-seven thousand, three hundred ninety-six".