124621942 has 4 divisors (see below), whose sum is σ = 186932916. Its totient is φ = 62310970.

The previous prime is 124621933. The next prime is 124621949. The reversal of 124621942 is 249126421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 249126421 = 79 ⋅3153499.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124621949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31155484 + ... + 31155487.

It is an arithmetic number, because the mean of its divisors is an integer number (46733229).

Almost surely, 2^124621942 is an apocalyptic number.

124621942 is a deficient number, since it is larger than the sum of its proper divisors (62310974).

124621942 is an equidigital number, since it uses as much as digits as its factorization.

124621942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62310973.

The product of its digits is 6912, while the sum is 31.

The square root of 124621942 is about 11163.4198165258. The cubic root of 124621942 is about 499.4954136231.

The spelling of 124621942 in words is "one hundred twenty-four million, six hundred twenty-one thousand, nine hundred forty-two".