1461553 has 2 divisors, whose sum is σ = 1461554. Its totient is φ = 1461552.

The previous prime is 1461517. The next prime is 1461563. The reversal of 1461553 is 3551641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1238769 + 222784 = 1113^2 + 472^2 .

It is an emirp because it is prime and its reverse (3551641) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1461553 is a prime.

It is a super-2 number, since 2×1461553² = 4272274343618, which contains 22 as substring.

It is a plaindrome in base 9.

It is not a weakly prime, because it can be changed into another prime (1461563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 730776 + 730777.

It is an arithmetic number, because the mean of its divisors is an integer number (730777).

2^1461553 is an apocalyptic number.

It is an amenable number.

1461553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1461553 is an equidigital number, since it uses as much as digits as its factorization.

1461553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 25.

The square root of 1461553 is about 1208.9470625300. The cubic root of 1461553 is about 113.4849288145.

The spelling of 1461553 in words is "one million, four hundred sixty-one thousand, five hundred fifty-three".