1053213165 has 32 divisors (see below), whose sum is σ = 1873722240. Its totient is φ = 561310848.

The previous prime is 1053213157. The next prime is 1053213169. The reversal of 1053213165 is 5613123501.

It is not a de Polignac number, because 1053213165 - 2³ = 1053213157 is a prime.

It is a super-2 number, since 2×1053213165² = 2218515941858634450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053213169) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 353974 + ... + 356936.

It is an arithmetic number, because the mean of its divisors is an integer number (58553820).

Almost surely, 2^1053213165 is an apocalyptic number.

1053213165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1053213165 is a deficient number, since it is larger than the sum of its proper divisors (820509075).

1053213165 is a wasteful number, since it uses less digits than its factorization.

1053213165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5610 (or 5604 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 1053213165 is about 32453.2458315035. The cubic root of 1053213165 is about 1017.4320785655.

Adding to 1053213165 its reverse (5613123501), we get a palindrome (6666336666).

The spelling of 1053213165 in words is "one billion, fifty-three million, two hundred thirteen thousand, one hundred sixty-five".