124781494 has 4 divisors (see below), whose sum is σ = 187172244. Its totient is φ = 62390746.

The previous prime is 124781483. The next prime is 124781497. The reversal of 124781494 is 494187421.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124781497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31195372 + ... + 31195375.

It is an arithmetic number, because the mean of its divisors is an integer number (46793061).

Almost surely, 2^124781494 is an apocalyptic number.

124781494 is a deficient number, since it is larger than the sum of its proper divisors (62390750).

124781494 is an equidigital number, since it uses as much as digits as its factorization.

124781494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62390749.

The product of its digits is 64512, while the sum is 40.

The square root of 124781494 is about 11170.5637279414. The cubic root of 124781494 is about 499.7084887421.

The spelling of 124781494 in words is "one hundred twenty-four million, seven hundred eighty-one thousand, four hundred ninety-four".