1229142674 has 4 divisors (see below), whose sum is σ = 1843714014. Its totient is φ = 614571336.

The previous prime is 1229142647. The next prime is 1229142689. The reversal of 1229142674 is 4762419221.

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., 1189767049 + 39375625 = 34493^2 + 6275^2 .

It is an unprimeable number.

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, 307285667 + ... + 307285670.

Almost surely, 2^1229142674 is an apocalyptic number.

1229142674 is a deficient number, since it is larger than the sum of its proper divisors (614571340).

1229142674 is an equidigital number, since it uses as much as digits as its factorization.

1229142674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614571339.

The product of its digits is 48384, while the sum is 38.

The square root of 1229142674 is about 35059.1311073164. The cubic root of 1229142674 is about 1071.1922756636.

The spelling of 1229142674 in words is "one billion, two hundred twenty-nine million, one hundred forty-two thousand, six hundred seventy-four".