1265455794 has 16 divisors (see below), whose sum is σ = 2531544768. Its totient is φ = 421713072.

The previous prime is 1265455787. The next prime is 1265455799. The reversal of 1265455794 is 4975545621.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1265455799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1939 + ... + 50345.

It is an arithmetic number, because the mean of its divisors is an integer number (158221548).

Almost surely, 2^1265455794 is an apocalyptic number.

1265455794 is an abundant number, since it is smaller than the sum of its proper divisors (1266088974).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1265455794 is a wasteful number, since it uses less digits than its factorization.

1265455794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52769.

The product of its digits is 1512000, while the sum is 48.

The square root of 1265455794 is about 35573.2454802763. The cubic root of 1265455794 is about 1081.6389706872.

The spelling of 1265455794 in words is "one billion, two hundred sixty-five million, four hundred fifty-five thousand, seven hundred ninety-four".