125288451 has 20 divisors (see below), whose sum is σ = 197012200. Its totient is φ = 79128576.

The previous prime is 125288441. The next prime is 125288461. The reversal of 125288451 is 154882521.

125288451 is a `hidden beast` number, since 1 + 2 + 528 + 84 + 51 = 666.

It is an interprime number because it is at equal distance from previous prime (125288441) and next prime (125288461).

It is not a de Polignac number, because 125288451 - 2¹⁹ = 124764163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125288441) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 39166 + ... + 42243.

It is an arithmetic number, because the mean of its divisors is an integer number (9850610).

Almost surely, 2^125288451 is an apocalyptic number.

125288451 is a deficient number, since it is larger than the sum of its proper divisors (71723749).

125288451 is an equidigital number, since it uses as much as digits as its factorization.

125288451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81440 (or 81431 counting only the distinct ones).

The product of its digits is 25600, while the sum is 36.

The square root of 125288451 is about 11193.2323749666. The cubic root of 125288451 is about 500.3843058756.

The spelling of 125288451 in words is "one hundred twenty-five million, two hundred eighty-eight thousand, four hundred fifty-one".