1551107 has 2 divisors, whose sum is σ = 1551108. Its totient is φ = 1551106.

The previous prime is 1551089. The next prime is 1551113. The reversal of 1551107 is 7011551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1551107 - 2⁸ = 1550851 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1551157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775553 + 775554.

It is an arithmetic number, because the mean of its divisors is an integer number (775554).

2^1551107 is an apocalyptic number.

1551107 is a deficient number, since it is larger than the sum of its proper divisors (1).

1551107 is an equidigital number, since it uses as much as digits as its factorization.

1551107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 175, while the sum is 20.

The square root of 1551107 is about 1245.4344623464. The cubic root of 1551107 is about 115.7569972461.

Adding to 1551107 its reverse (7011551), we get a palindrome (8562658).

The spelling of 1551107 in words is "one million, five hundred fifty-one thousand, one hundred seven".