124999967 has 4 divisors (see below), whose sum is σ = 129032256. Its totient is φ = 120967680.

The previous prime is 124999961. The next prime is 124999969. The reversal of 124999967 is 769999421.

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 124999967 - 2²⁰ = 123951391 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 (124999961) 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 3 ways as a sum of consecutive naturals, for example, 2016098 + ... + 2016159.

It is an arithmetic number, because the mean of its divisors is an integer number (32258064).

Almost surely, 2^124999967 is an apocalyptic number.

124999967 is a deficient number, since it is larger than the sum of its proper divisors (4032289).

124999967 is an equidigital number, since it uses as much as digits as its factorization.

124999967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4032288.

The product of its digits is 2204496, while the sum is 56.

The square root of 124999967 is about 11180.3384116940. The cubic root of 124999967 is about 499.9999560000. Note that the first 4 decimals are identical.

The spelling of 124999967 in words is "one hundred twenty-four million, nine hundred ninety-nine thousand, nine hundred sixty-seven".