1265056146 has 24 divisors (see below), whose sum is σ = 2771755740. Its totient is φ = 416946816.

The previous prime is 1265056123. The next prime is 1265056147. The reversal of 1265056146 is 6416505621.

1265056146 is a `hidden beast` number, since 1 + 2 + 6 + 50 + 561 + 46 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1191285225 + 73770921 = 34515^2 + 8589^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1265056146.

It is not an unprimeable number, because it can be changed into a prime (1265056147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 393235 + ... + 396438.

Almost surely, 2^1265056146 is an apocalyptic number.

1265056146 is an abundant number, since it is smaller than the sum of its proper divisors (1506699594).

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

1265056146 is a wasteful number, since it uses less digits than its factorization.

1265056146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789770 (or 789767 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 1265056146 is about 35567.6277814532. The cubic root of 1265056146 is about 1081.5250933087.

It can be divided in two parts, 126505 and 6146, that added together give a cube (132651 = 51³).

The spelling of 1265056146 in words is "one billion, two hundred sixty-five million, fifty-six thousand, one hundred forty-six".