142178377 has 16 divisors (see below), whose sum is σ = 159946560. Its totient is φ = 125280000.

The previous prime is 142178371. The next prime is 142178381. The reversal of 142178377 is 773871241.

It is a cyclic number.

It is not a de Polignac number, because 142178377 - 2¹⁵ = 142145609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142178371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45877 + ... + 48877.

It is an arithmetic number, because the mean of its divisors is an integer number (9996660).

Almost surely, 2^142178377 is an apocalyptic number.

It is an amenable number.

142178377 is a deficient number, since it is larger than the sum of its proper divisors (17768183).

142178377 is a wasteful number, since it uses less digits than its factorization.

142178377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3144.

The product of its digits is 65856, while the sum is 40.

The square root of 142178377 is about 11923.8574714729. The cubic root of 142178377 is about 521.9287065672.

The spelling of 142178377 in words is "one hundred forty-two million, one hundred seventy-eight thousand, three hundred seventy-seven".