124999998 has 16 divisors (see below), whose sum is σ = 258064896. Its totient is φ = 40322520.

The previous prime is 124999991. The next prime is 125000003. The reversal of 124999998 is 899999421.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124999991) 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 7 ways as a sum of consecutive naturals, for example, 335836 + ... + 336207.

It is an arithmetic number, because the mean of its divisors is an integer number (16129056).

Almost surely, 2^124999998 is an apocalyptic number.

124999998 is an abundant number, since it is smaller than the sum of its proper divisors (133064898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

124999998 is a wasteful number, since it uses less digits than its factorization.

124999998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672079.

The product of its digits is 3779136, while the sum is 60.

The square root of 124999998 is about 11180.3397980562. The cubic root of 124999998 is about 499.9999973333. Note that the first 5 decimals are identical.

The spelling of 124999998 in words is "one hundred twenty-four million, nine hundred ninety-nine thousand, nine hundred ninety-eight".