1228760741 has 4 divisors (see below), whose sum is σ = 1323280812. Its totient is φ = 1134240672.

The previous prime is 1228760737. The next prime is 1228760773. The reversal of 1228760741 is 1470678221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1470678221 = 73 ⋅20146277.

It can be written as a sum of positive squares in 2 ways, for example, as 351712516 + 877048225 = 18754^2 + 29615^2 .

It is a cyclic number.

It is not a de Polignac number, because 1228760741 - 2² = 1228760737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1228760695 and 1228760704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228750741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47260016 + ... + 47260041.

It is an arithmetic number, because the mean of its divisors is an integer number (330820203).

Almost surely, 2^1228760741 is an apocalyptic number.

It is an amenable number.

1228760741 is a deficient number, since it is larger than the sum of its proper divisors (94520071).

1228760741 is an equidigital number, since it uses as much as digits as its factorization.

1228760741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94520070.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 1228760741 is about 35053.6837008609. The cubic root of 1228760741 is about 1071.0813132096.

The spelling of 1228760741 in words is "one billion, two hundred twenty-eight million, seven hundred sixty thousand, seven hundred forty-one".