143425537 has 2 divisors, whose sum is σ = 143425538. Its totient is φ = 143425536.

The previous prime is 143425531. The next prime is 143425553. The reversal of 143425537 is 735524341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143424576 + 961 = 11976^2 + 31^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143425537 is a prime.

It is not a weakly prime, because it can be changed into another prime (143425531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71712768 + 71712769.

It is an arithmetic number, because the mean of its divisors is an integer number (71712769).

It is a Proth number, since it is equal to 4377 ⋅ 2¹⁵ + 1 and 4377 < 2¹⁵.

Almost surely, 2^143425537 is an apocalyptic number.

It is an amenable number.

143425537 is a deficient number, since it is larger than the sum of its proper divisors (1).

143425537 is an equidigital number, since it uses as much as digits as its factorization.

143425537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 34.

The square root of 143425537 is about 11976.0401218433. The cubic root of 143425537 is about 523.4503504091.

Adding to 143425537 its reverse (735524341), we get a palindrome (878949878).

The spelling of 143425537 in words is "one hundred forty-three million, four hundred twenty-five thousand, five hundred thirty-seven".