142367381 has 16 divisors (see below), whose sum is σ = 157538304. Its totient is φ = 127842624.

The previous prime is 142367359. The next prime is 142367419. The reversal of 142367381 is 183763241.

142367381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-142367381 is a prime.

It is a super-2 number, since 2×142367381² = 40536942345598322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142367311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86690 + ... + 88316.

It is an arithmetic number, because the mean of its divisors is an integer number (9846144).

Almost surely, 2^142367381 is an apocalyptic number.

It is an amenable number.

142367381 is a deficient number, since it is larger than the sum of its proper divisors (15170923).

142367381 is a wasteful number, since it uses less digits than its factorization.

142367381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820.

The product of its digits is 24192, while the sum is 35.

The square root of 142367381 is about 11931.7802946585. The cubic root of 142367381 is about 522.1598784604.

The spelling of 142367381 in words is "one hundred forty-two million, three hundred sixty-seven thousand, three hundred eighty-one".