124721950 has 12 divisors (see below), whose sum is σ = 231982920. Its totient is φ = 49888760.

The previous prime is 124721941. The next prime is 124721951. The reversal of 124721950 is 59127421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124721951) 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 5 ways as a sum of consecutive naturals, for example, 1247170 + ... + 1247269.

It is an arithmetic number, because the mean of its divisors is an integer number (19331910).

Almost surely, 2^124721950 is an apocalyptic number.

124721950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

124721950 is a deficient number, since it is larger than the sum of its proper divisors (107260970).

124721950 is a wasteful number, since it uses less digits than its factorization.

124721950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494451 (or 2494446 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 124721950 is about 11167.8981907967. The cubic root of 124721950 is about 499.6289914401.

The spelling of 124721950 in words is "one hundred twenty-four million, seven hundred twenty-one thousand, nine hundred fifty".