142675777 has 4 divisors (see below), whose sum is σ = 146155716. Its totient is φ = 139195840.

The previous prime is 142675751. The next prime is 142675787. The reversal of 142675777 is 777576241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 777576241 = 13 ⋅59813557.

It can be written as a sum of positive squares in 2 ways, for example, as 6230016 + 136445761 = 2496^2 + 11681^2 .

It is a cyclic number.

It is not a de Polignac number, because 142675777 - 2⁷ = 142675649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142675787) 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, 1739908 + ... + 1739989.

It is an arithmetic number, because the mean of its divisors is an integer number (36538929).

Almost surely, 2^142675777 is an apocalyptic number.

It is an amenable number.

142675777 is a deficient number, since it is larger than the sum of its proper divisors (3479939).

142675777 is an equidigital number, since it uses as much as digits as its factorization.

142675777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3479938.

The product of its digits is 576240, while the sum is 46.

The square root of 142675777 is about 11944.6966056070. The cubic root of 142675777 is about 522.5366405171.

The spelling of 142675777 in words is "one hundred forty-two million, six hundred seventy-five thousand, seven hundred seventy-seven".