135149025 has 48 divisors (see below), whose sum is σ = 246198528. Its totient is φ = 64872000.

The previous prime is 135149011. The next prime is 135149029. The reversal of 135149025 is 520941531.

It is not a de Polignac number, because 135149025 - 2¹⁶ = 135083489 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 135148983 and 135149001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135149029) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 87510 + ... + 89040.

It is an arithmetic number, because the mean of its divisors is an integer number (5129136).

Almost surely, 2^135149025 is an apocalyptic number.

135149025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135149025 is a deficient number, since it is larger than the sum of its proper divisors (111049503).

135149025 is a wasteful number, since it uses less digits than its factorization.

135149025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662 (or 1657 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 135149025 is about 11625.3612847085. The cubic root of 135149025 is about 513.1814769328.

The spelling of 135149025 in words is "one hundred thirty-five million, one hundred forty-nine thousand, twenty-five".