1265464146 has 32 divisors (see below), whose sum is σ = 2581383168. Its totient is φ = 413429120.

The previous prime is 1265464129. The next prime is 1265464147. The reversal of 1265464146 is 6414645621.

It is not an unprimeable number, because it can be changed into a prime (1265464147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469615 + ... + 472301.

It is an arithmetic number, because the mean of its divisors is an integer number (80668224).

Almost surely, 2^1265464146 is an apocalyptic number.

1265464146 is an abundant number, since it is smaller than the sum of its proper divisors (1315919022).

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

1265464146 is a wasteful number, since it uses less digits than its factorization.

1265464146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4226.

The product of its digits is 138240, while the sum is 39.

The square root of 1265464146 is about 35573.3628716769. The cubic root of 1265464146 is about 1081.6413502853.

The spelling of 1265464146 in words is "one billion, two hundred sixty-five million, four hundred sixty-four thousand, one hundred forty-six".