1264541 has 2 divisors, whose sum is σ = 1264542. Its totient is φ = 1264540.

The previous prime is 1264537. The next prime is 1264559. The reversal of 1264541 is 1454621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1243225 + 21316 = 1115^2 + 146^2 .

It is a cyclic number.

It is not a de Polignac number, because 1264541 - 2² = 1264537 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1264561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632270 + 632271.

It is an arithmetic number, because the mean of its divisors is an integer number (632271).

2^1264541 is an apocalyptic number.

It is an amenable number.

1264541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1264541 is an equidigital number, since it uses as much as digits as its factorization.

1264541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 23.

The square root of 1264541 is about 1124.5181190181. The cubic root of 1264541 is about 108.1378270058.

The spelling of 1264541 in words is "one million, two hundred sixty-four thousand, five hundred forty-one".