1551241 has 2 divisors, whose sum is σ = 1551242. Its totient is φ = 1551240.

The previous prime is 1551229. The next prime is 1551269. The reversal of 1551241 is 1421551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 942841 + 608400 = 971^2 + 780^2 .

It is a cyclic number.

It is not a de Polignac number, because 1551241 - 2⁷ = 1551113 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1551041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775620 + 775621.

It is an arithmetic number, because the mean of its divisors is an integer number (775621).

2^1551241 is an apocalyptic number.

It is an amenable number.

1551241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1551241 is an equidigital number, since it uses as much as digits as its factorization.

1551241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 200, while the sum is 19.

The square root of 1551241 is about 1245.4882576725. The cubic root of 1551241 is about 115.7603305625.

Adding to 1551241 its product of digits (200), we get a triangular number (1551441 = T₁₇₆₁).

Adding to 1551241 its reverse (1421551), we get a palindrome (2972792).

The spelling of 1551241 in words is "one million, five hundred fifty-one thousand, two hundred forty-one".