1212452164 has 48 divisors (see below), whose sum is σ = 2709899136. Its totient is φ = 460857600.

The previous prime is 1212452159. The next prime is 1212452207. The reversal of 1212452164 is 4612542121.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35379 + ... + 60634.

It is an arithmetic number, because the mean of its divisors is an integer number (56456232).

Almost surely, 2^1212452164 is an apocalyptic number.

1212452164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1212452164 is an abundant number, since it is smaller than the sum of its proper divisors (1497446972).

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

1212452164 is a wasteful number, since it uses less digits than its factorization.

1212452164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96076 (or 96074 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 1212452164 is about 34820.2838012558. The cubic root of 1212452164 is about 1066.3215944123.

Adding to 1212452164 its reverse (4612542121), we get a palindrome (5824994285).

The spelling of 1212452164 in words is "one billion, two hundred twelve million, four hundred fifty-two thousand, one hundred sixty-four".