151651 has 2 divisors, whose sum is σ = 151652. Its totient is φ = 151650.

The previous prime is 151643. The next prime is 151667. The reversal of 151651 is 156151.

It is a weak prime.

It is an emirp because it is prime and its reverse (156151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 151651 - 2³ = 151643 is a prime.

It is a Chen prime.

151651 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (151631) 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, 75825 + 75826.

It is an arithmetic number, because the mean of its divisors is an integer number (75826).

2¹⁵¹⁶⁵¹ is an apocalyptic number.

151651 is a deficient number, since it is larger than the sum of its proper divisors (1).

151651 is an equidigital number, since it uses as much as digits as its factorization.

151651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 150, while the sum is 19.

The square root of 151651 is about 389.4239335223. The cubic root of 151651 is about 53.3271564027.

The spelling of 151651 in words is "one hundred fifty-one thousand, six hundred fifty-one".