142370386 has 4 divisors (see below), whose sum is σ = 213555582. Its totient is φ = 71185192.

The previous prime is 142370381. The next prime is 142370419. The reversal of 142370386 is 683073241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 683073241 = 67 ⋅10195123.

It can be written as a sum of positive squares in only one way, i.e., 128119761 + 14250625 = 11319^2 + 3775^2 .

It is not an unprimeable number, because it can be changed into a prime (142370381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35592595 + ... + 35592598.

Almost surely, 2^142370386 is an apocalyptic number.

142370386 is a deficient number, since it is larger than the sum of its proper divisors (71185196).

142370386 is an equidigital number, since it uses as much as digits as its factorization.

142370386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71185195.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 142370386 is about 11931.9062182034. The cubic root of 142370386 is about 522.1635522406.

The spelling of 142370386 in words is "one hundred forty-two million, three hundred seventy thousand, three hundred eighty-six".