1466887901 has 2 divisors, whose sum is σ = 1466887902. Its totient is φ = 1466887900.

The previous prime is 1466887897. The next prime is 1466887949. The reversal of 1466887901 is 1097886641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1110622276 + 356265625 = 33326^2 + 18875^2 .

It is an emirp because it is prime and its reverse (1097886641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1466887901 - 2² = 1466887897 is a prime.

It is a super-2 number, since 2×1466887901² = 4303520228200371602, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1466887901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1466887991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 733443950 + 733443951.

It is an arithmetic number, because the mean of its divisors is an integer number (733443951).

Almost surely, 2^1466887901 is an apocalyptic number.

It is an amenable number.

1466887901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1466887901 is an equidigital number, since it uses as much as digits as its factorization.

1466887901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 50.

The square root of 1466887901 is about 38299.9725979014. The cubic root of 1466887901 is about 1136.2284049948.

The spelling of 1466887901 in words is "one billion, four hundred sixty-six million, eight hundred eighty-seven thousand, nine hundred one".