143135425 has 24 divisors (see below), whose sum is σ = 183277952. Its totient is φ = 110808000.

The previous prime is 143135423. The next prime is 143135471. The reversal of 143135425 is 524531341.

It is not a de Polignac number, because 143135425 - 2¹ = 143135423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143135393 and 143135402.

It is not an unprimeable number, because it can be changed into a prime (143135423) 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, 250390 + ... + 250960.

Almost surely, 2^143135425 is an apocalyptic number.

It is an amenable number.

143135425 is a deficient number, since it is larger than the sum of its proper divisors (40142527).

143135425 is a wasteful number, since it uses less digits than its factorization.

143135425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889 (or 884 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 143135425 is about 11963.9218068324. The cubic root of 143135425 is about 523.0971782176.

Adding to 143135425 its reverse (524531341), we get a palindrome (667666766).

It can be divided in two parts, 1431 and 35425, that added together give a triangular number (36856 = T₂₇₁).

The spelling of 143135425 in words is "one hundred forty-three million, one hundred thirty-five thousand, four hundred twenty-five".