1265354201 has 2 divisors, whose sum is σ = 1265354202. Its totient is φ = 1265354200.

The previous prime is 1265354147. The next prime is 1265354203. The reversal of 1265354201 is 1024535621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1012512400 + 252841801 = 31820^2 + 15901^2 .

It is a cyclic number.

It is not a de Polignac number, because 1265354201 - 2⁶ = 1265354137 is a prime.

It is a super-2 number, since 2×1265354201² = 3202242507976696802, which contains 22 as substring.

Together with 1265354203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1265354203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632677100 + 632677101.

It is an arithmetic number, because the mean of its divisors is an integer number (632677101).

Almost surely, 2^1265354201 is an apocalyptic number.

It is an amenable number.

1265354201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1265354201 is an equidigital number, since it uses as much as digits as its factorization.

1265354201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1265354201 is about 35571.8175104956. The cubic root of 1265354201 is about 1081.6100246244.

Adding to 1265354201 its reverse (1024535621), we get a palindrome (2289889822).

The spelling of 1265354201 in words is "one billion, two hundred sixty-five million, three hundred fifty-four thousand, two hundred one".