142345307 has 4 divisors (see below), whose sum is σ = 153294960. Its totient is φ = 131395656.

The previous prime is 142345303. The next prime is 142345337. The reversal of 142345307 is 703543241.

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: 703543241 = 6317 ⋅111373.

It is a cyclic number.

It is not a de Polignac number, because 142345307 - 2² = 142345303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142345307.

It is not an unprimeable number, because it can be changed into a prime (142345303) 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, 5474807 + ... + 5474832.

It is an arithmetic number, because the mean of its divisors is an integer number (38323740).

Almost surely, 2^142345307 is an apocalyptic number.

142345307 is a deficient number, since it is larger than the sum of its proper divisors (10949653).

142345307 is a wasteful number, since it uses less digits than its factorization.

142345307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10949652.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 142345307 is about 11930.8552501487. The cubic root of 142345307 is about 522.1328901788.

Adding to 142345307 its reverse (703543241), we get a palindrome (845888548).

The spelling of 142345307 in words is "one hundred forty-two million, three hundred forty-five thousand, three hundred seven".