142750894649 has 4 divisors (see below), whose sum is σ = 155728248720. Its totient is φ = 129773540580.

The previous prime is 142750894631. The next prime is 142750894687. The reversal of 142750894649 is 946498057241.

142750894649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 946498057241 = 11 ⋅86045277931.

It is a cyclic number.

It is not a de Polignac number, because 142750894649 - 2⁸ = 142750894393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142750891649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6488677019 + ... + 6488677040.

It is an arithmetic number, because the mean of its divisors is an integer number (38932062180).

Almost surely, 2^142750894649 is an apocalyptic number.

It is an amenable number.

142750894649 is a deficient number, since it is larger than the sum of its proper divisors (12977354071).

142750894649 is a wasteful number, since it uses less digits than its factorization.

142750894649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12977354070.

The product of its (nonzero) digits is 17418240, while the sum is 59.

The spelling of 142750894649 in words is "one hundred forty-two billion, seven hundred fifty million, eight hundred ninety-four thousand, six hundred forty-nine".