2151332155 has 8 divisors (see below), whose sum is σ = 2950398432. Its totient is φ = 1475199168.

The previous prime is 2151332149. The next prime is 2151332159. The reversal of 2151332155 is 5512331512.

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 2151332155 - 2¹⁷ = 2151201083 is a prime.

It is a super-2 number, since 2×2151332155² = 9256460082273888050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2151332159) 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, 30733282 + ... + 30733351.

It is an arithmetic number, because the mean of its divisors is an integer number (368799804).

Almost surely, 2^2151332155 is an apocalyptic number.

2151332155 is a deficient number, since it is larger than the sum of its proper divisors (799066277).

2151332155 is an equidigital number, since it uses as much as digits as its factorization.

2151332155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61466645.

The product of its digits is 4500, while the sum is 28.

The square root of 2151332155 is about 46382.4552498032. The cubic root of 2151332155 is about 1290.9293935457.

Adding to 2151332155 its reverse (5512331512), we get a palindrome (7663663667).

The spelling of 2151332155 in words is "two billion, one hundred fifty-one million, three hundred thirty-two thousand, one hundred fifty-five".