1551359 has 4 divisors (see below), whose sum is σ = 1568880. Its totient is φ = 1533840.

The previous prime is 1551343. The next prime is 1551371. The reversal of 1551359 is 9531551.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1551359 - 2⁴ = 1551343 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1551659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8627 + ... + 8804.

It is an arithmetic number, because the mean of its divisors is an integer number (392220).

2^1551359 is an apocalyptic number.

1551359 is a deficient number, since it is larger than the sum of its proper divisors (17521).

1551359 is an equidigital number, since it uses as much as digits as its factorization.

1551359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17520.

The product of its digits is 3375, while the sum is 29.

The square root of 1551359 is about 1245.5356277522. The cubic root of 1551359 is about 115.7632657120.

The spelling of 1551359 in words is "one million, five hundred fifty-one thousand, three hundred fifty-nine".