1213132994 has 4 divisors (see below), whose sum is σ = 1819699494. Its totient is φ = 606566496.

The previous prime is 1213132993. The next prime is 1213133029. The reversal of 1213132994 is 4992313121.

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

It can be written as a sum of positive squares in only one way, i.e., 1161105625 + 52027369 = 34075^2 + 7213^2 .

It is a super-3 number, since 3×1213132994³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1213132993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303283247 + ... + 303283250.

Almost surely, 2^1213132994 is an apocalyptic number.

1213132994 is a deficient number, since it is larger than the sum of its proper divisors (606566500).

1213132994 is an equidigital number, since it uses as much as digits as its factorization.

1213132994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606566499.

The product of its digits is 11664, while the sum is 35.

The square root of 1213132994 is about 34830.0587711247. The cubic root of 1213132994 is about 1066.5211480958.

The spelling of 1213132994 in words is "one billion, two hundred thirteen million, one hundred thirty-two thousand, nine hundred ninety-four".