377161221 has 8 divisors (see below), whose sum is σ = 519103744. Its totient is φ = 243329760.

The previous prime is 377161151. The next prime is 377161223. The reversal of 377161221 is 122161773.

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

It is not a de Polignac number, because 377161221 - 2¹¹ = 377159173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (377161223) 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, 2027656 + ... + 2027841.

It is an arithmetic number, because the mean of its divisors is an integer number (64887968).

Almost surely, 2^377161221 is an apocalyptic number.

377161221 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

377161221 is a deficient number, since it is larger than the sum of its proper divisors (141942523).

377161221 is a wasteful number, since it uses less digits than its factorization.

377161221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4055531.

The product of its digits is 3528, while the sum is 30.

The square root of 377161221 is about 19420.6390471581. The cubic root of 377161221 is about 722.5074745299.

The spelling of 377161221 in words is "three hundred seventy-seven million, one hundred sixty-one thousand, two hundred twenty-one".