142700077 has 4 divisors (see below), whose sum is σ = 153677020. Its totient is φ = 131723136.

The previous prime is 142700071. The next prime is 142700137. The reversal of 142700077 is 770007241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58537801 + 84162276 = 7651^2 + 9174^2 .

It is a cyclic number.

It is not a de Polignac number, because 142700077 - 2³ = 142700069 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 (142700071) 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, 5488452 + ... + 5488477.

It is an arithmetic number, because the mean of its divisors is an integer number (38419255).

Almost surely, 2^142700077 is an apocalyptic number.

It is an amenable number.

142700077 is a deficient number, since it is larger than the sum of its proper divisors (10976943).

142700077 is a wasteful number, since it uses less digits than its factorization.

142700077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10976942.

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 142700077 is about 11945.7137501281. The cubic root of 142700077 is about 522.5663043228.

The spelling of 142700077 in words is "one hundred forty-two million, seven hundred thousand, seventy-seven".