64111049 has 2 divisors, whose sum is σ = 64111050. Its totient is φ = 64111048.

The previous prime is 64111043. The next prime is 64111067. The reversal of 64111049 is 94011146.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54125449 + 9985600 = 7357^2 + 3160^2 .

It is a cyclic number.

It is not a de Polignac number, because 64111049 - 2¹² = 64106953 is a prime.

It is a super-2 number, since 2×64111049² = 8220453207760802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64111043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32055524 + 32055525.

It is an arithmetic number, because the mean of its divisors is an integer number (32055525).

Almost surely, 2^64111049 is an apocalyptic number.

It is an amenable number.

64111049 is a deficient number, since it is larger than the sum of its proper divisors (1).

64111049 is an equidigital number, since it uses as much as digits as its factorization.

64111049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 64111049 is about 8006.9375543962. The cubic root of 64111049 is about 400.2312184027.

The spelling of 64111049 in words is "sixty-four million, one hundred eleven thousand, forty-nine".