142750741 has 4 divisors (see below), whose sum is σ = 163143712. Its totient is φ = 122357772.

The previous prime is 142750739. The next prime is 142750747. The reversal of 142750741 is 147057241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 147057241 = 109 ⋅1349149.

It is a cyclic number.

It is not a de Polignac number, because 142750741 - 2¹ = 142750739 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142750747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10196475 + ... + 10196488.

It is an arithmetic number, because the mean of its divisors is an integer number (40785928).

Almost surely, 2^142750741 is an apocalyptic number.

It is an amenable number.

142750741 is a deficient number, since it is larger than the sum of its proper divisors (20392971).

142750741 is an equidigital number, since it uses as much as digits as its factorization.

142750741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20392970.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 142750741 is about 11947.8341551931. The cubic root of 142750741 is about 522.6281406982.

The spelling of 142750741 in words is "one hundred forty-two million, seven hundred fifty thousand, seven hundred forty-one".