142518377 has 4 divisors (see below), whose sum is σ = 147115776. Its totient is φ = 137920980.

The previous prime is 142518349. The next prime is 142518391. The reversal of 142518377 is 773815241.

142518377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142518377 - 2⁸ = 142518121 is a prime.

It is a super-2 number, since 2×142518377² = 40622975565428258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142518377.

It is not an unprimeable number, because it can be changed into a prime (142518577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2298653 + ... + 2298714.

It is an arithmetic number, because the mean of its divisors is an integer number (36778944).

Almost surely, 2^142518377 is an apocalyptic number.

It is an amenable number.

142518377 is a deficient number, since it is larger than the sum of its proper divisors (4597399).

142518377 is an equidigital number, since it uses as much as digits as its factorization.

142518377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4597398.

The product of its digits is 47040, while the sum is 38.

The square root of 142518377 is about 11938.1060893259. The cubic root of 142518377 is about 522.3444155705.

The spelling of 142518377 in words is "one hundred forty-two million, five hundred eighteen thousand, three hundred seventy-seven".