1213674541 has 2 divisors, whose sum is σ = 1213674542. Its totient is φ = 1213674540.

The previous prime is 1213674503. The next prime is 1213674559. The reversal of 1213674541 is 1454763121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1192320900 + 21353641 = 34530^2 + 4621^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213674541 - 2¹⁷ = 1213543469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1213674497 and 1213674506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213674941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606837270 + 606837271.

It is an arithmetic number, because the mean of its divisors is an integer number (606837271).

Almost surely, 2^1213674541 is an apocalyptic number.

It is an amenable number.

1213674541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213674541 is an equidigital number, since it uses as much as digits as its factorization.

1213674541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 34.

The square root of 1213674541 is about 34837.8320364514. The cubic root of 1213674541 is about 1066.6798241324.

The spelling of 1213674541 in words is "one billion, two hundred thirteen million, six hundred seventy-four thousand, five hundred forty-one".