142404425 has 6 divisors (see below), whose sum is σ = 176581518. Its totient is φ = 113923520.

The previous prime is 142404419. The next prime is 142404469. The reversal of 142404425 is 524404241.

It can be written as a sum of positive squares in 3 ways, for example, as 22458121 + 119946304 = 4739^2 + 10952^2 .

It is a de Polignac number, because none of the positive numbers 2^k-142404425 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 142404394 and 142404403.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2848064 + ... + 2848113.

It is an arithmetic number, because the mean of its divisors is an integer number (29430253).

Almost surely, 2^142404425 is an apocalyptic number.

It is an amenable number.

142404425 is a deficient number, since it is larger than the sum of its proper divisors (34177093).

142404425 is an equidigital number, since it uses as much as digits as its factorization.

142404425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5696187 (or 5696182 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 142404425 is about 11933.3325186219. The cubic root of 142404425 is about 522.2051632088.

Adding to 142404425 its reverse (524404241), we get a palindrome (666808666).

The spelling of 142404425 in words is "one hundred forty-two million, four hundred four thousand, four hundred twenty-five".