1212603552 has 36 divisors (see below), whose sum is σ = 3448342170. Its totient is φ = 404201088.

The previous prime is 1212603547. The next prime is 1212603559. The reversal of 1212603552 is 2553062121.

It is a happy number.

1212603552 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 603 + 5 + 52 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1083463056 + 129140496 = 32916^2 + 11364^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1212603559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2104927 + ... + 2105502.

Almost surely, 2^1212603552 is an apocalyptic number.

1212603552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212603552 is an abundant number, since it is smaller than the sum of its proper divisors (2235738618).

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

1212603552 is a wasteful number, since it uses less digits than its factorization.

1212603552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4210445 (or 4210434 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1212603552 is about 34822.4575812794. The cubic root of 1212603552 is about 1066.3659732286.

Adding to 1212603552 its reverse (2553062121), we get a palindrome (3765665673).

The spelling of 1212603552 in words is "one billion, two hundred twelve million, six hundred three thousand, five hundred fifty-two".