142077724 has 12 divisors (see below), whose sum is σ = 249145848. Its totient is φ = 70893200.

The previous prime is 142077713. The next prime is 142077737. The reversal of 142077724 is 427770241.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 142077724.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34207 + ... + 38134.

It is an arithmetic number, because the mean of its divisors is an integer number (20762154).

Almost surely, 2^142077724 is an apocalyptic number.

It is an amenable number.

142077724 is a deficient number, since it is larger than the sum of its proper divisors (107068124).

142077724 is a wasteful number, since it uses less digits than its factorization.

142077724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72836 (or 72834 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 34.

The square root of 142077724 is about 11919.6360682699. The cubic root of 142077724 is about 521.8055136858.

The spelling of 142077724 in words is "one hundred forty-two million, seventy-seven thousand, seven hundred twenty-four".