1210405164 has 24 divisors (see below), whose sum is σ = 2827668480. Its totient is φ = 402984144.

The previous prime is 1210405139. The next prime is 1210405177. The reversal of 1210405164 is 4615040121.

It is a happy number.

It is a super-2 number, since 2×1210405164² = 2930161322075733792, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50044 + ... + 70179.

It is an arithmetic number, because the mean of its divisors is an integer number (117819520).

Almost surely, 2^1210405164 is an apocalyptic number.

It is an amenable number.

1210405164 is an abundant number, since it is smaller than the sum of its proper divisors (1617263316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1210405164 is a wasteful number, since it uses less digits than its factorization.

1210405164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121069 (or 121067 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1210405164 is about 34790.8775974392. The cubic root of 1210405164 is about 1065.7211611425.

Adding to 1210405164 its reverse (4615040121), we get a palindrome (5825445285).

The spelling of 1210405164 in words is "one billion, two hundred ten million, four hundred five thousand, one hundred sixty-four".