142677461 has 4 divisors (see below), whose sum is σ = 143018400. Its totient is φ = 142336524.

The previous prime is 142677427. The next prime is 142677467. The reversal of 142677461 is 164776241.

It is a happy number.

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: 164776241 = 7 ⋅23539463.

It is a cyclic number.

It is not a de Polignac number, because 142677461 - 2¹⁰ = 142676437 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 (142677467) 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 3 ways as a sum of consecutive naturals, for example, 169841 + ... + 170678.

It is an arithmetic number, because the mean of its divisors is an integer number (35754600).

Almost surely, 2^142677461 is an apocalyptic number.

It is an amenable number.

142677461 is a deficient number, since it is larger than the sum of its proper divisors (340939).

142677461 is an equidigital number, since it uses as much as digits as its factorization.

142677461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340938.

The product of its digits is 56448, while the sum is 38.

The square root of 142677461 is about 11944.7670969341. The cubic root of 142677461 is about 522.5386963397.

It can be divided in two parts, 1426 and 77461, that added together give a palindrome (78887).

The spelling of 142677461 in words is "one hundred forty-two million, six hundred seventy-seven thousand, four hundred sixty-one".