1045121315 has 16 divisors (see below), whose sum is σ = 1508747520. Its totient is φ = 678935520.

The previous prime is 1045121279. The next prime is 1045121317. The reversal of 1045121315 is 5131215401.

1045121315 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 1045121315 - 2⁶ = 1045121251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1045121317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 785141 + ... + 786470.

It is an arithmetic number, because the mean of its divisors is an integer number (94296720).

Almost surely, 2^1045121315 is an apocalyptic number.

1045121315 is a deficient number, since it is larger than the sum of its proper divisors (463626205).

1045121315 is a wasteful number, since it uses less digits than its factorization.

1045121315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571642.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 1045121315 is about 32328.3361000841. The cubic root of 1045121315 is about 1014.8197290400.

Adding to 1045121315 its reverse (5131215401), we get a palindrome (6176336716).

The spelling of 1045121315 in words is "one billion, forty-five million, one hundred twenty-one thousand, three hundred fifteen".