142196634 has 40 divisors (see below), whose sum is σ = 320100660. Its totient is φ = 47179584.

The previous prime is 142196629. The next prime is 142196647. The reversal of 142196634 is 436691241.

142196634 is a `hidden beast` number, since 1 + 4 + 2 + 19 + 6 + 634 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 140493609 + 1703025 = 11853^2 + 1305^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 35182 + ... + 39014.

Almost surely, 2^142196634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142196634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160050330).

142196634 is an abundant number, since it is smaller than the sum of its proper divisors (177904026).

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

142196634 is a wasteful number, since it uses less digits than its factorization.

142196634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4076 (or 4067 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 142196634 is about 11924.6230129090. The cubic root of 142196634 is about 521.9510457460.

The spelling of 142196634 in words is "one hundred forty-two million, one hundred ninety-six thousand, six hundred thirty-four".