1264545079 has 16 divisors (see below), whose sum is σ = 1462443840. Its totient is φ = 1071014400.

The previous prime is 1264545077. The next prime is 1264545091. The reversal of 1264545079 is 9705454621.

It is a cyclic number.

It is not a de Polignac number, because 1264545079 - 2¹ = 1264545077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264545077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303897 + ... + 308029.

It is an arithmetic number, because the mean of its divisors is an integer number (91402740).

Almost surely, 2^1264545079 is an apocalyptic number.

1264545079 is a deficient number, since it is larger than the sum of its proper divisors (197898761).

1264545079 is a wasteful number, since it uses less digits than its factorization.

1264545079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4650.

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 1264545079 is about 35560.4426153556. The cubic root of 1264545079 is about 1081.3794327819.

The spelling of 1264545079 in words is "one billion, two hundred sixty-four million, five hundred forty-five thousand, seventy-nine".