151305551 has 2 divisors, whose sum is σ = 151305552. Its totient is φ = 151305550.

The previous prime is 151305529. The next prime is 151305571. The reversal of 151305551 is 155503151.

151305551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (155503151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 151305551 - 2⁶ = 151305487 is a prime.

It is a Chen prime.

It is equal to p_8513621 and since 151305551 and 8513621 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 151305551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151305521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75652775 + 75652776.

It is an arithmetic number, because the mean of its divisors is an integer number (75652776).

Almost surely, 2^151305551 is an apocalyptic number.

151305551 is a deficient number, since it is larger than the sum of its proper divisors (1).

151305551 is an equidigital number, since it uses as much as digits as its factorization.

151305551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1875, while the sum is 26.

The square root of 151305551 is about 12300.6321382277. The cubic root of 151305551 is about 532.8663393467.

The spelling of 151305551 in words is "one hundred fifty-one million, three hundred five thousand, five hundred fifty-one".