124861949 has 16 divisors (see below), whose sum is σ = 130014720. Its totient is φ = 119857920.

The previous prime is 124861931. The next prime is 124861969. The reversal of 124861949 is 949168421.

It is a cyclic number.

It is not a de Polignac number, because 124861949 - 2²⁰ = 123813373 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 (124861909) 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 15 ways as a sum of consecutive naturals, for example, 633719 + ... + 633915.

It is an arithmetic number, because the mean of its divisors is an integer number (8125920).

Almost surely, 2^124861949 is an apocalyptic number.

It is an amenable number.

124861949 is a deficient number, since it is larger than the sum of its proper divisors (5152771).

124861949 is a wasteful number, since it uses less digits than its factorization.

124861949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460.

The product of its digits is 124416, while the sum is 44.

The square root of 124861949 is about 11174.1643535434. The cubic root of 124861949 is about 499.8158641963.

The spelling of 124861949 in words is "one hundred twenty-four million, eight hundred sixty-one thousand, nine hundred forty-nine".