142735634 has 4 divisors (see below), whose sum is σ = 214103454. Its totient is φ = 71367816.

The previous prime is 142735613. The next prime is 142735639. The reversal of 142735634 is 436537241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 436537241 = 7 ⋅62362463.

It can be written as a sum of positive squares in only one way, i.e., 135792409 + 6943225 = 11653^2 + 2635^2 .

It is a super-2 number, since 2×142735634² = 40746922426763912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142735594 and 142735603.

It is not an unprimeable number, because it can be changed into a prime (142735639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35683907 + ... + 35683910.

Almost surely, 2^142735634 is an apocalyptic number.

142735634 is a deficient number, since it is larger than the sum of its proper divisors (71367820).

142735634 is an equidigital number, since it uses as much as digits as its factorization.

142735634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71367819.

The product of its digits is 60480, while the sum is 35.

The square root of 142735634 is about 11947.2019318332. The cubic root of 142735634 is about 522.6097038486.

The spelling of 142735634 in words is "one hundred forty-two million, seven hundred thirty-five thousand, six hundred thirty-four".