135652561425 has 36 divisors (see below), whose sum is σ = 243028126380. Its totient is φ = 72330370560.

The previous prime is 135652561411. The next prime is 135652561439. The reversal of 135652561425 is 524165256531.

135652561425 is a `hidden beast` number, since 1 + 3 + 5 + 6 + 5 + 2 + 5 + 614 + 25 = 666.

It is an interprime number because it is at equal distance from previous prime (135652561411) and next prime (135652561439).

It can be written as a sum of positive squares in 6 ways, for example, as 7147518849 + 128505042576 = 84543^2 + 358476^2 .

It is not a de Polignac number, because 135652561425 - 2⁴ = 135652561409 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 877341 + ... + 1020309.

Almost surely, 2^135652561425 is an apocalyptic number.

135652561425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135652561425 is a deficient number, since it is larger than the sum of its proper divisors (107375564955).

135652561425 is a wasteful number, since it uses less digits than its factorization.

135652561425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147202 (or 147194 counting only the distinct ones).

The product of its digits is 1080000, while the sum is 45.

The spelling of 135652561425 in words is "one hundred thirty-five billion, six hundred fifty-two million, five hundred sixty-one thousand, four hundred twenty-five".