135319825 has 6 divisors (see below), whose sum is σ = 167796614. Its totient is φ = 108255840.

The previous prime is 135319799. The next prime is 135319831. The reversal of 135319825 is 528913531.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 25573249 + 109746576 = 5057^2 + 10476^2 .

It is not a de Polignac number, because 135319825 - 2¹³ = 135311633 is a prime.

It is a super-2 number, since 2×135319825² = 36622910076061250, which contains 22 as substring.

It is a Duffinian number.

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, 2706372 + ... + 2706421.

Almost surely, 2^135319825 is an apocalyptic number.

It is an amenable number.

135319825 is a deficient number, since it is larger than the sum of its proper divisors (32476789).

135319825 is an equidigital number, since it uses as much as digits as its factorization.

135319825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5412803 (or 5412798 counting only the distinct ones).

The product of its digits is 32400, while the sum is 37.

The square root of 135319825 is about 11632.7049734789. The cubic root of 135319825 is about 513.3975704830.

The spelling of 135319825 in words is "one hundred thirty-five million, three hundred nineteen thousand, eight hundred twenty-five".