151687 has 2 divisors, whose sum is σ = 151688. Its totient is φ = 151686.

The previous prime is 151681. The next prime is 151693. The reversal of 151687 is 786151.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (151681) and next prime (151693).

It is an emirp because it is prime and its reverse (786151) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75843 + 75844.

It is an arithmetic number, because the mean of its divisors is an integer number (75844).

2¹⁵¹⁶⁸⁷ is an apocalyptic number.

151687 is a deficient number, since it is larger than the sum of its proper divisors (1).

151687 is an equidigital number, since it uses as much as digits as its factorization.

151687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 28.

The square root of 151687 is about 389.4701529001. The cubic root of 151687 is about 53.3313757962.

It can be divided in two parts, 151 and 687, that added together give a palindrome (838).

The spelling of 151687 in words is "one hundred fifty-one thousand, six hundred eighty-seven".