151965551 has 2 divisors, whose sum is σ = 151965552. Its totient is φ = 151965550.

The previous prime is 151965467. The next prime is 151965571. The reversal of 151965551 is 155569151.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 151965551 - 2¹⁸ = 151703407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151965571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75982775 + 75982776.

It is an arithmetic number, because the mean of its divisors is an integer number (75982776).

Almost surely, 2^151965551 is an apocalyptic number.

151965551 is a deficient number, since it is larger than the sum of its proper divisors (1).

151965551 is an equidigital number, since it uses as much as digits as its factorization.

151965551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33750, while the sum is 38.

The square root of 151965551 is about 12327.4308353363. The cubic root of 151965551 is about 533.6400092559.

The spelling of 151965551 in words is "one hundred fifty-one million, nine hundred sixty-five thousand, five hundred fifty-one".