1227125741 has 2 divisors, whose sum is σ = 1227125742. Its totient is φ = 1227125740.

The previous prime is 1227125737. The next prime is 1227125743. The reversal of 1227125741 is 1475217221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1001975716 + 225150025 = 31654^2 + 15005^2 .

It is an emirp because it is prime and its reverse (1475217221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1227125741 - 2² = 1227125737 is a prime.

Together with 1227125743, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1227125698 and 1227125707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1227125743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613562870 + 613562871.

It is an arithmetic number, because the mean of its divisors is an integer number (613562871).

Almost surely, 2^1227125741 is an apocalyptic number.

It is an amenable number.

1227125741 is a deficient number, since it is larger than the sum of its proper divisors (1).

1227125741 is an equidigital number, since it uses as much as digits as its factorization.

1227125741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7840, while the sum is 32.

The square root of 1227125741 is about 35030.3545657191. The cubic root of 1227125741 is about 1070.6060388967.

The spelling of 1227125741 in words is "one billion, two hundred twenty-seven million, one hundred twenty-five thousand, seven hundred forty-one".