12541620 has 96 divisors (see below), whose sum is σ = 43239168. Its totient is φ = 2644992.

The previous prime is 12541603. The next prime is 12541637. The reversal of 12541620 is 2614521.

12541620 = T₈₂₉ + T₈₃₀ + ... + T₈₆₃.

It is an interprime number because it is at equal distance from previous prime (12541603) and next prime (12541637).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4312 + ... + 6608.

It is an arithmetic number, because the mean of its divisors is an integer number (450408).

Almost surely, 2^12541620 is an apocalyptic number.

12541620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12541620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21619584).

12541620 is an abundant number, since it is smaller than the sum of its proper divisors (30697548).

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

12541620 is a wasteful number, since it uses less digits than its factorization.

12541620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2329 (or 2327 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 12541620 is about 3541.4149714486. The cubic root of 12541620 is about 232.3367335682.

The spelling of 12541620 in words is "twelve million, five hundred forty-one thousand, six hundred twenty".