1264151294 has 48 divisors (see below), whose sum is σ = 2284603776. Its totient is φ = 523091520.

The previous prime is 1264151261. The next prime is 1264151299. The reversal of 1264151294 is 4921514621.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264151299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2919302 + ... + 2919734.

It is an arithmetic number, because the mean of its divisors is an integer number (47595912).

Almost surely, 2^1264151294 is an apocalyptic number.

1264151294 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1264151294 is a deficient number, since it is larger than the sum of its proper divisors (1020452482).

1264151294 is an frugal number, since it uses more digits than its factorization.

1264151294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542 (or 473 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 1264151294 is about 35554.9053437075. The cubic root of 1264151294 is about 1081.2671723291.

The spelling of 1264151294 in words is "one billion, two hundred sixty-four million, one hundred fifty-one thousand, two hundred ninety-four".