1241423779 has 8 divisors (see below), whose sum is σ = 1277680320. Its totient is φ = 1205674536.

The previous prime is 1241423761. The next prime is 1241423783. The reversal of 1241423779 is 9773241421.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1241423779 - 2¹³ = 1241415587 is a prime.

It is a super-2 number, since 2×1241423779² = 3082265998133281682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1241423479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121857 + ... + 131650.

It is an arithmetic number, because the mean of its divisors is an integer number (159710040).

Almost surely, 2^1241423779 is an apocalyptic number.

1241423779 is a deficient number, since it is larger than the sum of its proper divisors (36256541).

1241423779 is an equidigital number, since it uses as much as digits as its factorization.

1241423779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253649.

The product of its digits is 84672, while the sum is 40.

The square root of 1241423779 is about 35233.8442268226. The cubic root of 1241423779 is about 1074.7481014979.

The spelling of 1241423779 in words is "one billion, two hundred forty-one million, four hundred twenty-three thousand, seven hundred seventy-nine".