12125454 has 64 divisors (see below), whose sum is σ = 28553472. Its totient is φ = 3392000.

The previous prime is 12125447. The next prime is 12125461. The reversal of 12125454 is 45452121.

It is an interprime number because it is at equal distance from previous prime (12125447) and next prime (12125461).

It is a super-2 number, since 2×12125454² = 294053269412232, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

12125454 is a modest number, since divided by 5454 gives 1212 as remainder.

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, 113269 + ... + 113375.

It is an arithmetic number, because the mean of its divisors is an integer number (446148).

Almost surely, 2^12125454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12125454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14276736).

12125454 is an abundant number, since it is smaller than the sum of its proper divisors (16428018).

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

12125454 is a wasteful number, since it uses less digits than its factorization.

12125454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241.

The product of its digits is 1600, while the sum is 24.

The square root of 12125454 is about 3482.1622592866. The cubic root of 12125454 is about 229.7379119206.

Adding to 12125454 its reverse (45452121), we get a palindrome (57577575).

It can be divided in two parts, 1212 and 5454, that added together give a palindrome (6666).

The spelling of 12125454 in words is "twelve million, one hundred twenty-five thousand, four hundred fifty-four".