142444501 has 8 divisors (see below), whose sum is σ = 150256800. Its totient is φ = 134663760.

The previous prime is 142444493. The next prime is 142444507. The reversal of 142444501 is 105444241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142444501 - 2³ = 142444493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142444507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1695 + ... + 16963.

It is an arithmetic number, because the mean of its divisors is an integer number (18782100).

Almost surely, 2^142444501 is an apocalyptic number.

It is an amenable number.

142444501 is a deficient number, since it is larger than the sum of its proper divisors (7812299).

142444501 is a wasteful number, since it uses less digits than its factorization.

142444501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15779.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 142444501 is about 11935.0115626253. The cubic root of 142444501 is about 522.2541456081.

Adding to 142444501 its reverse (105444241), we get a palindrome (247888742).

The spelling of 142444501 in words is "one hundred forty-two million, four hundred forty-four thousand, five hundred one".