1421673146 has 4 divisors (see below), whose sum is σ = 2132509722. Its totient is φ = 710836572.

The previous prime is 1421673133. The next prime is 1421673167. The reversal of 1421673146 is 6413761241.

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., 1357111921 + 64561225 = 36839^2 + 8035^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355418285 + ... + 355418288.

Almost surely, 2^1421673146 is an apocalyptic number.

1421673146 is a deficient number, since it is larger than the sum of its proper divisors (710836576).

1421673146 is an equidigital number, since it uses as much as digits as its factorization.

1421673146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710836575.

The product of its digits is 24192, while the sum is 35.

The square root of 1421673146 is about 37705.0811695188. The cubic root of 1421673146 is about 1124.4321469341.

The spelling of 1421673146 in words is "one billion, four hundred twenty-one million, six hundred seventy-three thousand, one hundred forty-six".