142011634 has 4 divisors (see below), whose sum is σ = 213017454. Its totient is φ = 71005816.

The previous prime is 142011601. The next prime is 142011641. The reversal of 142011634 is 436110241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 117657409 + 24354225 = 10847^2 + 4935^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35502907 + ... + 35502910.

Almost surely, 2^142011634 is an apocalyptic number.

142011634 is a deficient number, since it is larger than the sum of its proper divisors (71005820).

142011634 is an equidigital number, since it uses as much as digits as its factorization.

142011634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71005819.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 142011634 is about 11916.8634296110. The cubic root of 142011634 is about 521.7245920746.

Adding to 142011634 its reverse (436110241), we get a palindrome (578121875).

The spelling of 142011634 in words is "one hundred forty-two million, eleven thousand, six hundred thirty-four".