151549 has 2 divisors, whose sum is σ = 151550. Its totient is φ = 151548.

The previous prime is 151537. The next prime is 151553. The reversal of 151549 is 945151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145924 + 5625 = 382^2 + 75^2 .

It is an emirp because it is prime and its reverse (945151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 151549 - 2⁵ = 151517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151579) 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, 75774 + 75775.

It is an arithmetic number, because the mean of its divisors is an integer number (75775).

2¹⁵¹⁵⁴⁹ is an apocalyptic number.

It is an amenable number.

151549 is a deficient number, since it is larger than the sum of its proper divisors (1).

151549 is an equidigital number, since it uses as much as digits as its factorization.

151549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 900, while the sum is 25.

The square root of 151549 is about 389.2929488188. The cubic root of 151549 is about 53.3151978269.

The spelling of 151549 in words is "one hundred fifty-one thousand, five hundred forty-nine".