12541551 has 8 divisors (see below), whose sum is σ = 18242304. Its totient is φ = 7600920.

The previous prime is 12541541. The next prime is 12541561. The reversal of 12541551 is 15514521.

It is an interprime number because it is at equal distance from previous prime (12541541) and next prime (12541561).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12541551 - 2⁵ = 12541519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12541541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189991 + ... + 190056.

It is an arithmetic number, because the mean of its divisors is an integer number (2280288).

Almost surely, 2^12541551 is an apocalyptic number.

12541551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12541551 is a deficient number, since it is larger than the sum of its proper divisors (5700753).

12541551 is a wasteful number, since it uses less digits than its factorization.

12541551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380061.

The product of its digits is 1000, while the sum is 24.

The square root of 12541551 is about 3541.4052295664. The cubic root of 12541551 is about 232.3363074865.

The spelling of 12541551 in words is "twelve million, five hundred forty-one thousand, five hundred fifty-one".