1413661 has 2 divisors, whose sum is σ = 1413662. Its totient is φ = 1413660.

The previous prime is 1413647. The next prime is 1413673. The reversal of 1413661 is 1663141.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 783225 + 630436 = 885^2 + 794^2 .

It is a cyclic number.

It is not a de Polignac number, because 1413661 - 2¹⁹ = 889373 is a prime.

1413661 is a lucky number.

It is equal to p₁₀₈₀₇₆ and since 1413661 and 108076 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1413641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 706830 + 706831.

It is an arithmetic number, because the mean of its divisors is an integer number (706831).

2^1413661 is an apocalyptic number.

It is an amenable number.

1413661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1413661 is an equidigital number, since it uses as much as digits as its factorization.

1413661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 22.

The square root of 1413661 is about 1188.9747684455. The cubic root of 1413661 is about 112.2315839583.

The spelling of 1413661 in words is "one million, four hundred thirteen thousand, six hundred sixty-one".