1245535441 has 2 divisors, whose sum is σ = 1245535442. Its totient is φ = 1245535440.

The previous prime is 1245535439. The next prime is 1245535451. The reversal of 1245535441 is 1445355421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1187836225 + 57699216 = 34465^2 + 7596^2 .

It is a cyclic number.

It is not a de Polignac number, because 1245535441 - 2¹ = 1245535439 is a prime.

Together with 1245535439, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1245535397 and 1245535406.

It is not a weakly prime, because it can be changed into another prime (1245535411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622767720 + 622767721.

It is an arithmetic number, because the mean of its divisors is an integer number (622767721).

Almost surely, 2^1245535441 is an apocalyptic number.

It is an amenable number.

1245535441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245535441 is an equidigital number, since it uses as much as digits as its factorization.

1245535441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48000, while the sum is 34.

The square root of 1245535441 is about 35292.1441825231. The cubic root of 1245535441 is about 1075.9333350189.

The spelling of 1245535441 in words is "one billion, two hundred forty-five million, five hundred thirty-five thousand, four hundred forty-one".