142779038 has 4 divisors (see below), whose sum is σ = 214168560. Its totient is φ = 71389518.

The previous prime is 142779029. The next prime is 142779047. The reversal of 142779038 is 830977241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 830977241 = 27817 ⋅29873.

It is an interprime number because it is at equal distance from previous prime (142779029) and next prime (142779047).

It is a junction number, because it is equal to n+sod(n) for n = 142778986 and 142779004.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 35694758 + ... + 35694761.

It is an arithmetic number, because the mean of its divisors is an integer number (53542140).

Almost surely, 2^142779038 is an apocalyptic number.

142779038 is a deficient number, since it is larger than the sum of its proper divisors (71389522).

142779038 is an equidigital number, since it uses as much as digits as its factorization.

142779038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71389521.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 142779038 is about 11949.0182860350. The cubic root of 142779038 is about 522.6626713571.

The spelling of 142779038 in words is "one hundred forty-two million, seven hundred seventy-nine thousand, thirty-eight".