1012155315 has 48 divisors (see below), whose sum is σ = 1677733344. Its totient is φ = 521021440.

The previous prime is 1012155311. The next prime is 1012155317. The reversal of 1012155315 is 5135512101.

1012155315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1012155315 - 2² = 1012155311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012155311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3454309 + ... + 3454601.

It is an arithmetic number, because the mean of its divisors is an integer number (34952778).

Almost surely, 2^1012155315 is an apocalyptic number.

1012155315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1012155315 is a deficient number, since it is larger than the sum of its proper divisors (665578029).

1012155315 is a wasteful number, since it uses less digits than its factorization.

1012155315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520 (or 479 counting only the distinct ones).

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

The square root of 1012155315 is about 31814.3884901156. The cubic root of 1012155315 is about 1004.0354647848.

Adding to 1012155315 its reverse (5135512101), we get a palindrome (6147667416).

The spelling of 1012155315 in words is "one billion, twelve million, one hundred fifty-five thousand, three hundred fifteen".