1265464097 has 4 divisors (see below), whose sum is σ = 1309100820. Its totient is φ = 1221827376.

The previous prime is 1265464091. The next prime is 1265464103. The reversal of 1265464097 is 7904645621.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1265464091) and next prime (1265464103).

It can be written as a sum of positive squares in 2 ways, for example, as 555827776 + 709636321 = 23576^2 + 26639^2 .

It is a cyclic number.

It is not a de Polignac number, because 1265464097 - 2²⁰ = 1264415521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1265464091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21818318 + ... + 21818375.

It is an arithmetic number, because the mean of its divisors is an integer number (327275205).

Almost surely, 2^1265464097 is an apocalyptic number.

It is an amenable number.

1265464097 is a deficient number, since it is larger than the sum of its proper divisors (43636723).

1265464097 is an equidigital number, since it uses as much as digits as its factorization.

1265464097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43636722.

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 1265464097 is about 35573.3621829593. The cubic root of 1265464097 is about 1081.6413363246.

The spelling of 1265464097 in words is "one billion, two hundred sixty-five million, four hundred sixty-four thousand, ninety-seven".