1611151 has 2 divisors, whose sum is σ = 1611152. Its totient is φ = 1611150.

The previous prime is 1611139. The next prime is 1611157. The reversal of 1611151 is 1511161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1611151 - 2⁹ = 1610639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1611157) 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, 805575 + 805576.

It is an arithmetic number, because the mean of its divisors is an integer number (805576).

2^1611151 is an apocalyptic number.

1611151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1611151 is an equidigital number, since it uses as much as digits as its factorization.

1611151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30, while the sum is 16.

The square root of 1611151 is about 1269.3112305499. The cubic root of 1611151 is about 117.2317950832.

The spelling of 1611151 in words is "one million, six hundred eleven thousand, one hundred fifty-one".