1671611154 has 16 divisors (see below), whose sum is σ = 3420972192. Its totient is φ = 544245408.

The previous prime is 1671611153. The next prime is 1671611191. The reversal of 1671611154 is 4511161761.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1671611153) 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, 3239299 + ... + 3239814.

It is an arithmetic number, because the mean of its divisors is an integer number (213810762).

Almost surely, 2^1671611154 is an apocalyptic number.

1671611154 is an abundant number, since it is smaller than the sum of its proper divisors (1749361038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1671611154 is a wasteful number, since it uses less digits than its factorization.

1671611154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6479161.

The product of its digits is 5040, while the sum is 33.

The square root of 1671611154 is about 40885.3415541561. The cubic root of 1671611154 is about 1186.8024115463.

The spelling of 1671611154 in words is "one billion, six hundred seventy-one million, six hundred eleven thousand, one hundred fifty-four".