1064121641 has 8 divisors (see below), whose sum is σ = 1161098400. Its totient is φ = 967184640.

The previous prime is 1064121631. The next prime is 1064121649. The reversal of 1064121641 is 1461214601.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1064121641 is a prime.

It is a super-2 number, since 2×1064121641² = 2264709733689065762, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1064121641.

It is not an unprimeable number, because it can be changed into a prime (1064121649) 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, 88265 + ... + 99593.

It is an arithmetic number, because the mean of its divisors is an integer number (145137300).

Almost surely, 2^1064121641 is an apocalyptic number.

1064121641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1064121641 is a deficient number, since it is larger than the sum of its proper divisors (96976759).

1064121641 is a wasteful number, since it uses less digits than its factorization.

1064121641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19879.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1064121641 is about 32620.8773793716. The cubic root of 1064121641 is about 1020.9326472211.

The spelling of 1064121641 in words is "one billion, sixty-four million, one hundred twenty-one thousand, six hundred forty-one".