142461381 has 8 divisors (see below), whose sum is σ = 190032480. Its totient is φ = 94932272.

The previous prime is 142461367. The next prime is 142461383. The reversal of 142461381 is 183164241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142461381 - 2¹¹ = 142459333 is a prime.

It is a super-2 number, since 2×142461381² = 40590490152854322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142461383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1470 + ... + 16943.

It is an arithmetic number, because the mean of its divisors is an integer number (23754060).

Almost surely, 2^142461381 is an apocalyptic number.

It is an amenable number.

142461381 is a deficient number, since it is larger than the sum of its proper divisors (47571099).

142461381 is a wasteful number, since it uses less digits than its factorization.

142461381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20995.

The product of its digits is 4608, while the sum is 30.

The square root of 142461381 is about 11935.7187047953. The cubic root of 142461381 is about 522.2747742312.

The spelling of 142461381 in words is "one hundred forty-two million, four hundred sixty-one thousand, three hundred eighty-one".