1264632126 has 16 divisors (see below), whose sum is σ = 2590954128. Its totient is φ = 411262400.

The previous prime is 1264632121. The next prime is 1264632179. The reversal of 1264632126 is 6212364621.

It is a super-2 number, since 2×1264632126² = 3198588828222559752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264632121) 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, 2570145 + ... + 2570636.

It is an arithmetic number, because the mean of its divisors is an integer number (161934633).

Almost surely, 2^1264632126 is an apocalyptic number.

1264632126 is an abundant number, since it is smaller than the sum of its proper divisors (1326322002).

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

1264632126 is a wasteful number, since it uses less digits than its factorization.

1264632126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5140827.

The product of its digits is 20736, while the sum is 33.

The square root of 1264632126 is about 35561.6665245036. Note that the first 3 decimals coincide. The cubic root of 1264632126 is about 1081.4042450450.

Adding to 1264632126 its reverse (6212364621), we get a palindrome (7476996747).

The spelling of 1264632126 in words is "one billion, two hundred sixty-four million, six hundred thirty-two thousand, one hundred twenty-six".