1515151005 has 16 divisors (see below), whose sum is σ = 2458387584. Its totient is φ = 796698560.

The previous prime is 1515151003. The next prime is 1515151007. The reversal of 1515151005 is 5001515151.

It is an interprime number because it is at equal distance from previous prime (1515151003) and next prime (1515151007).

It is not a de Polignac number, because 1515151005 - 2¹ = 1515151003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1515151003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 710274 + ... + 712403.

It is an arithmetic number, because the mean of its divisors is an integer number (153649224).

Almost surely, 2^1515151005 is an apocalyptic number.

1515151005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1515151005 is a deficient number, since it is larger than the sum of its proper divisors (943236579).

1515151005 is a wasteful number, since it uses less digits than its factorization.

1515151005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422756.

The product of its (nonzero) digits is 625, while the sum is 24.

The square root of 1515151005 is about 38924.9406550607. The cubic root of 1515151005 is about 1148.5554653982. Note that the first 3 decimals are identical.

Adding to 1515151005 its reverse (5001515151), we get a palindrome (6516666156).

The spelling of 1515151005 in words is "one billion, five hundred fifteen million, one hundred fifty-one thousand, five".