1551463 has 2 divisors, whose sum is σ = 1551464. Its totient is φ = 1551462.

The previous prime is 1551449. The next prime is 1551467. The reversal of 1551463 is 3641551.

It is a strong prime.

It is an emirp because it is prime and its reverse (3641551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1551463 - 2¹³ = 1543271 is a prime.

1551463 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1551467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775731 + 775732.

It is an arithmetic number, because the mean of its divisors is an integer number (775732).

2^1551463 is an apocalyptic number.

1551463 is a deficient number, since it is larger than the sum of its proper divisors (1).

1551463 is an equidigital number, since it uses as much as digits as its factorization.

1551463 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1551463 is about 1245.5773761593. The cubic root of 1551463 is about 115.7658525000.

The spelling of 1551463 in words is "one million, five hundred fifty-one thousand, four hundred sixty-three".