1254564541 has 2 divisors, whose sum is σ = 1254564542. Its totient is φ = 1254564540.

The previous prime is 1254564539. The next prime is 1254564551. The reversal of 1254564541 is 1454654521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 839260900 + 415303641 = 28970^2 + 20379^2 .

It is a cyclic number.

It is not a de Polignac number, because 1254564541 - 2¹ = 1254564539 is a prime.

Together with 1254564539, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1254564541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1254564511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627282270 + 627282271.

It is an arithmetic number, because the mean of its divisors is an integer number (627282271).

Almost surely, 2^1254564541 is an apocalyptic number.

It is an amenable number.

1254564541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254564541 is an equidigital number, since it uses as much as digits as its factorization.

1254564541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96000, while the sum is 37.

The square root of 1254564541 is about 35419.8325941837. The cubic root of 1254564541 is about 1078.5269529679.

The spelling of 1254564541 in words is "one billion, two hundred fifty-four million, five hundred sixty-four thousand, five hundred forty-one".