1213150515 has 16 divisors (see below), whose sum is σ = 2055220128. Its totient is φ = 608953856.

The previous prime is 1213150501. The next prime is 1213150531. The reversal of 1213150515 is 5150513121.

It is a cyclic number.

It is not a de Polignac number, because 1213150515 - 2⁶ = 1213150451 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2378472 + ... + 2378981.

It is an arithmetic number, because the mean of its divisors is an integer number (128451258).

Almost surely, 2^1213150515 is an apocalyptic number.

1213150515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1213150515 is a deficient number, since it is larger than the sum of its proper divisors (842069613).

1213150515 is a wasteful number, since it uses less digits than its factorization.

1213150515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4757478.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 1213150515 is about 34830.3102914688. The cubic root of 1213150515 is about 1066.5262825774.

Adding to 1213150515 its reverse (5150513121), we get a palindrome (6363663636).

The spelling of 1213150515 in words is "one billion, two hundred thirteen million, one hundred fifty thousand, five hundred fifteen".