12581148 has 24 divisors (see below), whose sum is σ = 29981952. Its totient is φ = 4104304.

The previous prime is 12581123. The next prime is 12581183. The reversal of 12581148 is 84118521.

12581148 = 382² + 383² + ... + 453².

It is a happy number.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10590 + ... + 11717.

It is an arithmetic number, because the mean of its divisors is an integer number (1249248).

Almost surely, 2^12581148 is an apocalyptic number.

It is an amenable number.

12581148 is an abundant number, since it is smaller than the sum of its proper divisors (17400804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12581148 is a wasteful number, since it uses less digits than its factorization.

12581148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22361 (or 22359 counting only the distinct ones).

The product of its digits is 2560, while the sum is 30.

The square root of 12581148 is about 3546.9914011737. The cubic root of 12581148 is about 232.5805663671.

Adding to 12581148 its reverse (84118521), we get a palindrome (96699669).

The spelling of 12581148 in words is "twelve million, five hundred eighty-one thousand, one hundred forty-eight".