125229487 has 4 divisors (see below), whose sum is σ = 126738360. Its totient is φ = 123720616.

The previous prime is 125229473. The next prime is 125229521. The reversal of 125229487 is 784922521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125229487 - 2⁷ = 125229359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125229427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 754312 + ... + 754477.

It is an arithmetic number, because the mean of its divisors is an integer number (31684590).

Almost surely, 2^125229487 is an apocalyptic number.

125229487 is a deficient number, since it is larger than the sum of its proper divisors (1508873).

125229487 is an equidigital number, since it uses as much as digits as its factorization.

125229487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508872.

The product of its digits is 80640, while the sum is 40.

The square root of 125229487 is about 11190.5981520203. The cubic root of 125229487 is about 500.3057956066.

The spelling of 125229487 in words is "one hundred twenty-five million, two hundred twenty-nine thousand, four hundred eighty-seven".