12258135 has 64 divisors (see below), whose sum is σ = 23616000. Its totient is φ = 6088608.

The previous prime is 12258131. The next prime is 12258151. The reversal of 12258135 is 53185221.

12258135 = T₂₆₀ + T₂₆₁ + ... + T₄₄₉.

It is a happy number.

It is not a de Polignac number, because 12258135 - 2² = 12258131 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 12258099 and 12258108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12258131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 207736 + ... + 207794.

It is an arithmetic number, because the mean of its divisors is an integer number (369000).

Almost surely, 2^12258135 is an apocalyptic number.

12258135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12258135 is a deficient number, since it is larger than the sum of its proper divisors (11357865).

12258135 is an frugal number, since it uses more digits than its factorization.

12258135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 86 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 12258135 is about 3501.1619499817. The cubic root of 12258135 is about 230.5728317457.

The spelling of 12258135 in words is "twelve million, two hundred fifty-eight thousand, one hundred thirty-five".