142345601 has 4 divisors (see below), whose sum is σ = 147254100. Its totient is φ = 137437104.

The previous prime is 142345561. The next prime is 142345627. The reversal of 142345601 is 106543241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28944400 + 113401201 = 5380^2 + 10649^2 .

It is a cyclic number.

It is not a de Polignac number, because 142345601 - 2²² = 138151297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142345501) 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, 2454206 + ... + 2454263.

It is an arithmetic number, because the mean of its divisors is an integer number (36813525).

Almost surely, 2^142345601 is an apocalyptic number.

It is an amenable number.

142345601 is a deficient number, since it is larger than the sum of its proper divisors (4908499).

142345601 is an equidigital number, since it uses as much as digits as its factorization.

142345601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4908498.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 142345601 is about 11930.8675711366. The cubic root of 142345601 is about 522.1332496496.

Adding to 142345601 its reverse (106543241), we get a palindrome (248888842).

The spelling of 142345601 in words is "one hundred forty-two million, three hundred forty-five thousand, six hundred one".