2015532151 has 4 divisors (see below), whose sum is σ = 2021621704. Its totient is φ = 2009442600.

The previous prime is 2015532139. The next prime is 2015532157. The reversal of 2015532151 is 1512355102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1512355102 = 2 ⋅756177551.

It is a cyclic number.

It is not a de Polignac number, because 2015532151 - 2⁷ = 2015532023 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 (2015532157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3044280 + ... + 3044941.

It is an arithmetic number, because the mean of its divisors is an integer number (505405426).

Almost surely, 2^2015532151 is an apocalyptic number.

2015532151 is a deficient number, since it is larger than the sum of its proper divisors (6089553).

2015532151 is an equidigital number, since it uses as much as digits as its factorization.

2015532151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6089552.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 2015532151 is about 44894.6784262901. The cubic root of 2015532151 is about 1263.1741903267.

Adding to 2015532151 its reverse (1512355102), we get a palindrome (3527887253).

The spelling of 2015532151 in words is "two billion, fifteen million, five hundred thirty-two thousand, one hundred fifty-one".