1264948121 has 8 divisors (see below), whose sum is σ = 1339812864. Its totient is φ = 1190134080.

The previous prime is 1264948117. The next prime is 1264948127. The reversal of 1264948121 is 1218494621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1264948121 - 2² = 1264948117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1264948127) 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, 46676 + ... + 68618.

It is an arithmetic number, because the mean of its divisors is an integer number (167476608).

Almost surely, 2^1264948121 is an apocalyptic number.

It is an amenable number.

1264948121 is a deficient number, since it is larger than the sum of its proper divisors (74864743).

1264948121 is a wasteful number, since it uses less digits than its factorization.

1264948121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25351.

The product of its digits is 27648, while the sum is 38.

The square root of 1264948121 is about 35566.1091630783. The cubic root of 1264948121 is about 1081.4943080943.

The spelling of 1264948121 in words is "one billion, two hundred sixty-four million, nine hundred forty-eight thousand, one hundred twenty-one".