142742735 has 4 divisors (see below), whose sum is σ = 171291288. Its totient is φ = 114194184.

The previous prime is 142742729. The next prime is 142742741. The reversal of 142742735 is 537247241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 537247241 = 12269 ⋅43789.

It is an interprime number because it is at equal distance from previous prime (142742729) and next prime (142742741).

It is a cyclic number.

It is not a de Polignac number, because 142742735 - 2¹⁴ = 142726351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142742695 and 142742704.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 14274269 + ... + 14274278.

It is an arithmetic number, because the mean of its divisors is an integer number (42822822).

Almost surely, 2^142742735 is an apocalyptic number.

142742735 is a deficient number, since it is larger than the sum of its proper divisors (28548553).

142742735 is an equidigital number, since it uses as much as digits as its factorization.

142742735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28548552.

The product of its digits is 47040, while the sum is 35.

The square root of 142742735 is about 11947.4991106926. The cubic root of 142742735 is about 522.6183701964.

Adding to 142742735 its reverse (537247241), we get a palindrome (679989976).

The spelling of 142742735 in words is "one hundred forty-two million, seven hundred forty-two thousand, seven hundred thirty-five".