142102401 has 24 divisors (see below), whose sum is σ = 225539424. Its totient is φ = 79309440.

The previous prime is 142102379. The next prime is 142102403. The reversal of 142102401 is 104201241.

It is not a de Polignac number, because 142102401 - 2¹³ = 142094209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142102403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4920 + ... + 17561.

It is an arithmetic number, because the mean of its divisors is an integer number (9397476).

Almost surely, 2^142102401 is an apocalyptic number.

It is an amenable number.

142102401 is a deficient number, since it is larger than the sum of its proper divisors (83437023).

142102401 is a wasteful number, since it uses less digits than its factorization.

142102401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22541 (or 22534 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 142102401 is about 11920.6711639907. The cubic root of 142102401 is about 521.8357221494.

Adding to 142102401 its reverse (104201241), we get a palindrome (246303642).

The spelling of 142102401 in words is "one hundred forty-two million, one hundred two thousand, four hundred one".