142709877 has 8 divisors (see below), whose sum is σ = 211422080. Its totient is φ = 95139900.

The previous prime is 142709873. The next prime is 142709881. The reversal of 142709877 is 778907241.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (142709873) and next prime (142709881).

It is not a de Polignac number, because 142709877 - 2² = 142709873 is a prime.

It is a super-2 number, since 2×142709877² = 40732217986710258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142709873) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2642749 + ... + 2642802.

It is an arithmetic number, because the mean of its divisors is an integer number (26427760).

Almost surely, 2^142709877 is an apocalyptic number.

It is an amenable number.

142709877 is a deficient number, since it is larger than the sum of its proper divisors (68712203).

142709877 is an equidigital number, since it uses as much as digits as its factorization.

142709877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5285560 (or 5285554 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 45.

The square root of 142709877 is about 11946.1239320543. The cubic root of 142709877 is about 522.5782665507.

The spelling of 142709877 in words is "one hundred forty-two million, seven hundred nine thousand, eight hundred seventy-seven".