151806689 has 2 divisors, whose sum is σ = 151806690. Its totient is φ = 151806688.

The previous prime is 151806673. The next prime is 151806701. The reversal of 151806689 is 986608151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144408289 + 7398400 = 12017^2 + 2720^2 .

It is a cyclic number.

It is not a de Polignac number, because 151806689 - 2⁴ = 151806673 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (151806089) 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, 75903344 + 75903345.

It is an arithmetic number, because the mean of its divisors is an integer number (75903345).

Almost surely, 2^151806689 is an apocalyptic number.

It is an amenable number.

151806689 is a deficient number, since it is larger than the sum of its proper divisors (1).

151806689 is an equidigital number, since it uses as much as digits as its factorization.

151806689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 151806689 is about 12320.9857154369. The cubic root of 151806689 is about 533.4539919282.

The spelling of 151806689 in words is "one hundred fifty-one million, eight hundred six thousand, six hundred eighty-nine".