151505551 has 8 divisors (see below), whose sum is σ = 154027008. Its totient is φ = 148995000.

The previous prime is 151505527. The next prime is 151505567. The reversal of 151505551 is 155505151.

151505551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 151505551 - 2¹¹ = 151503503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151505521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28126 + ... + 33076.

It is an arithmetic number, because the mean of its divisors is an integer number (19253376).

Almost surely, 2^151505551 is an apocalyptic number.

151505551 is a deficient number, since it is larger than the sum of its proper divisors (2521457).

151505551 is an equidigital number, since it uses as much as digits as its factorization.

151505551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5453.

The product of its (nonzero) digits is 3125, while the sum is 28.

The square root of 151505551 is about 12308.7591169866. The cubic root of 151505551 is about 533.1010219573.

The spelling of 151505551 in words is "one hundred fifty-one million, five hundred five thousand, five hundred fifty-one".