1564151 has 2 divisors, whose sum is σ = 1564152. Its totient is φ = 1564150.

The previous prime is 1564139. The next prime is 1564159. The reversal of 1564151 is 1514651.

It is a strong prime.

It is an emirp because it is prime and its reverse (1514651) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1564151 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1564159) 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 as a sum of consecutive naturals, namely, 782075 + 782076.

It is an arithmetic number, because the mean of its divisors is an integer number (782076).

2^1564151 is an apocalyptic number.

1564151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1564151 is an equidigital number, since it uses as much as digits as its factorization.

1564151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 600, while the sum is 23.

The square root of 1564151 is about 1250.6602256408. The cubic root of 1564151 is about 116.0805771904.

The spelling of 1564151 in words is "one million, five hundred sixty-four thousand, one hundred fifty-one".