125445456 has 40 divisors (see below), whose sum is σ = 360076160. Its totient is φ = 41815008.

The previous prime is 125445449. The next prime is 125445461. The reversal of 125445456 is 654544521.

125445456 is a `hidden beast` number, since 12 + 544 + 54 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 125445456.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144760 + ... + 145623.

It is an arithmetic number, because the mean of its divisors is an integer number (9001904).

Almost surely, 2^125445456 is an apocalyptic number.

125445456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

125445456 is an abundant number, since it is smaller than the sum of its proper divisors (234630704).

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

125445456 is a wasteful number, since it uses less digits than its factorization.

125445456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290400 (or 290388 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

The square root of 125445456 is about 11200.2435687801. The cubic root of 125445456 is about 500.5932371942.

Adding to 125445456 its reverse (654544521), we get a palindrome (779989977).

The spelling of 125445456 in words is "one hundred twenty-five million, four hundred forty-five thousand, four hundred fifty-six".