125878667 has 4 divisors (see below), whose sum is σ = 132503880. Its totient is φ = 119253456.

The previous prime is 125878639. The next prime is 125878703. The reversal of 125878667 is 766878521.

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 125878667 - 2¹⁶ = 125813131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125878607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3312578 + ... + 3312615.

It is an arithmetic number, because the mean of its divisors is an integer number (33125970).

Almost surely, 2^125878667 is an apocalyptic number.

125878667 is a deficient number, since it is larger than the sum of its proper divisors (6625213).

125878667 is an equidigital number, since it uses as much as digits as its factorization.

125878667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6625212.

The product of its digits is 1128960, while the sum is 50.

The square root of 125878667 is about 11219.5662572133. The cubic root of 125878667 is about 501.1688215832.

The spelling of 125878667 in words is "one hundred twenty-five million, eight hundred seventy-eight thousand, six hundred sixty-seven".