1213318148 has 48 divisors (see below), whose sum is σ = 2469003264. Its totient is φ = 510965280.

The previous prime is 1213318133. The next prime is 1213318157. The reversal of 1213318148 is 8418133121.

It is a super-2 number, since 2×1213318148² = 2944281856532299808, which contains 22 as substring.

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, 728765 + ... + 730427.

It is an arithmetic number, because the mean of its divisors is an integer number (51437568).

Almost surely, 2^1213318148 is an apocalyptic number.

It is an amenable number.

1213318148 is an abundant number, since it is smaller than the sum of its proper divisors (1255685116).

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

1213318148 is a wasteful number, since it uses less digits than its factorization.

1213318148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112 (or 2110 counting only the distinct ones).

The product of its digits is 4608, while the sum is 32.

The square root of 1213318148 is about 34832.7166324994. The cubic root of 1213318148 is about 1066.5754044750.

The spelling of 1213318148 in words is "one billion, two hundred thirteen million, three hundred eighteen thousand, one hundred forty-eight".