1012165455 has 16 divisors (see below), whose sum is σ = 1850817024. Its totient is φ = 462704160.

The previous prime is 1012165411. The next prime is 1012165501. The reversal of 1012165455 is 5545612101.

It is not a de Polignac number, because 1012165455 - 2⁹ = 1012164943 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4819731 + ... + 4819940.

It is an arithmetic number, because the mean of its divisors is an integer number (115676064).

Almost surely, 2^1012165455 is an apocalyptic number.

1012165455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1012165455 is a deficient number, since it is larger than the sum of its proper divisors (838651569).

1012165455 is an equidigital number, since it uses as much as digits as its factorization.

1012165455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9639686.

The product of its (nonzero) digits is 6000, while the sum is 30.

The square root of 1012165455 is about 31814.5478515726. The cubic root of 1012165455 is about 1004.0388176581.

Adding to 1012165455 its reverse (5545612101), we get a palindrome (6557777556).

The spelling of 1012165455 in words is "one billion, twelve million, one hundred sixty-five thousand, four hundred fifty-five".