142370387 has 4 divisors (see below), whose sum is σ = 142423176. Its totient is φ = 142317600.

The previous prime is 142370381. The next prime is 142370419. The reversal of 142370387 is 783073241.

142370387 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.

It is a cyclic number.

It is not a de Polignac number, because 142370387 - 2⁸ = 142370131 is a prime.

It is a super-3 number, since 3×142370387³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142370381) 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, 22118 + ... + 27819.

It is an arithmetic number, because the mean of its divisors is an integer number (35605794).

Almost surely, 2^142370387 is an apocalyptic number.

142370387 is a deficient number, since it is larger than the sum of its proper divisors (52789).

142370387 is an equidigital number, since it uses as much as digits as its factorization.

142370387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52788.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 142370387 is about 11931.9062601078. The cubic root of 142370387 is about 522.1635534631.

The spelling of 142370387 in words is "one hundred forty-two million, three hundred seventy thousand, three hundred eighty-seven".