142674761 has 4 divisors (see below), whose sum is σ = 151067412. Its totient is φ = 134282112.

The previous prime is 142674739. The next prime is 142674767. The reversal of 142674761 is 167476241.

142674761 = 2889² + 2890² + ... + 2905².

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 167476241 = 19 ⋅8814539.

It can be written as a sum of positive squares in 2 ways, for example, as 109830400 + 32844361 = 10480^2 + 5731^2 .

It is a cyclic number.

It is not a de Polignac number, because 142674761 - 2²² = 138480457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142674767) 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, 4196300 + ... + 4196333.

It is an arithmetic number, because the mean of its divisors is an integer number (37766853).

Almost surely, 2^142674761 is an apocalyptic number.

It is an amenable number.

142674761 is a deficient number, since it is larger than the sum of its proper divisors (8392651).

142674761 is an equidigital number, since it uses as much as digits as its factorization.

142674761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8392650.

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

The square root of 142674761 is about 11944.6540761966. The cubic root of 142674761 is about 522.5354001793.

The spelling of 142674761 in words is "one hundred forty-two million, six hundred seventy-four thousand, seven hundred sixty-one".