126545625 has 40 divisors (see below), whose sum is σ = 234300000. Its totient is φ = 67482000.

The previous prime is 126545623. The next prime is 126545633. The reversal of 126545625 is 526545621.

126545625 is a `hidden beast` number, since 1 + 26 + 5 + 4 + 5 + 625 = 666.

It is not a de Polignac number, because 126545625 - 2¹ = 126545623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126545625.

It is not an unprimeable number, because it can be changed into a prime (126545623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13126 + ... + 20624.

It is an arithmetic number, because the mean of its divisors is an integer number (5857500).

Almost surely, 2^126545625 is an apocalyptic number.

126545625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

126545625 is the 5625-th decagonal number.

It is an amenable number.

126545625 is a deficient number, since it is larger than the sum of its proper divisors (107754375).

126545625 is an frugal number, since it uses more digits than its factorization.

126545625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7528 (or 7507 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 126545625 is about 11249.2499749983. The cubic root of 126545625 is about 502.0523971381.

The spelling of 126545625 in words is "one hundred twenty-six million, five hundred forty-five thousand, six hundred twenty-five".