1234148779 has 6 divisors (see below), whose sum is σ = 1311016484. Its totient is φ = 1161551520.

The previous prime is 1234148771. The next prime is 1234148809. The reversal of 1234148779 is 9778414321.

It is not a de Polignac number, because 1234148779 - 2³ = 1234148771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1234148771) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2134917 + ... + 2135494.

Almost surely, 2^1234148779 is an apocalyptic number.

1234148779 is a deficient number, since it is larger than the sum of its proper divisors (76867705).

1234148779 is an equidigital number, since it uses as much as digits as its factorization.

1234148779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4270445 (or 4270428 counting only the distinct ones).

The product of its digits is 338688, while the sum is 46.

The square root of 1234148779 is about 35130.4537260765. The cubic root of 1234148779 is about 1072.6445717344.

The spelling of 1234148779 in words is "one billion, two hundred thirty-four million, one hundred forty-eight thousand, seven hundred seventy-nine".