671369149 has 8 divisors (see below), whose sum is σ = 764246592. Its totient is φ = 583799040.

The previous prime is 671369143. The next prime is 671369159. The reversal of 671369149 is 941963176.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-671369149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 671369099 and 671369108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671369143) 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 in 7 ways as a sum of consecutive naturals, for example, 1326564 + ... + 1327069.

It is an arithmetic number, because the mean of its divisors is an integer number (95530824).

Almost surely, 2^671369149 is an apocalyptic number.

It is an amenable number.

671369149 is a deficient number, since it is larger than the sum of its proper divisors (92877443).

671369149 is a wasteful number, since it uses less digits than its factorization.

671369149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2653667.

The product of its digits is 244944, while the sum is 46.

The square root of 671369149 is about 25910.7921337809. The cubic root of 671369149 is about 875.6296524787.

The spelling of 671369149 in words is "six hundred seventy-one million, three hundred sixty-nine thousand, one hundred forty-nine".