135258450625 has 45 divisors (see below), whose sum is σ = 173245114911. Its totient is φ = 105566136000.

The previous prime is 135258450581. The next prime is 135258450661. The reversal of 135258450625 is 526054852531.

The square root of 135258450625 is 367775.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 129715945921 + 5542504704 = 360161^2 + 74448^2 .

It is not a de Polignac number, because 135258450625 - 2²⁵ = 135224896193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 432135469 + ... + 432135781.

Almost surely, 2^135258450625 is an apocalyptic number.

135258450625 is the 367775-th square number.

135258450625 is the 183888-th centered octagonal number.

It is an amenable number.

135258450625 is a deficient number, since it is larger than the sum of its proper divisors (37986664286).

135258450625 is an frugal number, since it uses more digits than its factorization.

135258450625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740 (or 365 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 46.

The spelling of 135258450625 in words is "one hundred thirty-five billion, two hundred fifty-eight million, four hundred fifty thousand, six hundred twenty-five".