1213552334 has 4 divisors (see below), whose sum is σ = 1820328504. Its totient is φ = 606776166.

The previous prime is 1213552331. The next prime is 1213552337. The reversal of 1213552334 is 4332553121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1213552331) and next prime (1213552337).

It is a junction number, because it is equal to n+sod(n) for n = 1213552297 and 1213552306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213552331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303388082 + ... + 303388085.

It is an arithmetic number, because the mean of its divisors is an integer number (455082126).

Almost surely, 2^1213552334 is an apocalyptic number.

1213552334 is a deficient number, since it is larger than the sum of its proper divisors (606776170).

1213552334 is an equidigital number, since it uses as much as digits as its factorization.

1213552334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606776169.

The product of its digits is 10800, while the sum is 29.

The square root of 1213552334 is about 34836.0780513536. The cubic root of 1213552334 is about 1066.6440209819.

The spelling of 1213552334 in words is "one billion, two hundred thirteen million, five hundred fifty-two thousand, three hundred thirty-four".