151555151 has 4 divisors (see below), whose sum is σ = 165332904. Its totient is φ = 137777400.

The previous prime is 151555111. The next prime is 151555169.

It is a happy number.

151555151 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 151555151 - 2¹⁸ = 151293007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151555111) 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 in 3 ways as a sum of consecutive naturals, for example, 6888860 + ... + 6888881.

It is an arithmetic number, because the mean of its divisors is an integer number (41333226).

Almost surely, 2^151555151 is an apocalyptic number.

151555151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

151555151 is a deficient number, since it is larger than the sum of its proper divisors (13777753).

151555151 is a wasteful number, since it uses less digits than its factorization.

151555151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13777752.

The product of its digits is 3125, while the sum is 29.

The square root of 151555151 is about 12310.7737774683. The cubic root of 151555151 is about 533.1591912796.

The spelling of 151555151 in words is "one hundred fifty-one million, five hundred fifty-five thousand, one hundred fifty-one".