1405671161 has 8 divisors (see below), whose sum is σ = 1484761344. Its totient is φ = 1328690160.

The previous prime is 1405671143. The next prime is 1405671193. The reversal of 1405671161 is 1611765041.

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

It is a cyclic number.

It is not a de Polignac number, because 1405671161 - 2¹⁸ = 1405409017 is a prime.

It is a super-2 number, since 2×1405671161² = 3951822825734175842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1405673161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 525926 + ... + 528591.

It is an arithmetic number, because the mean of its divisors is an integer number (185595168).

Almost surely, 2^1405671161 is an apocalyptic number.

It is an amenable number.

1405671161 is a deficient number, since it is larger than the sum of its proper divisors (79090183).

1405671161 is a wasteful number, since it uses less digits than its factorization.

1405671161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054591.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 1405671161 is about 37492.2813522997. The cubic root of 1405671161 is about 1120.1974463230.

The spelling of 1405671161 in words is "one billion, four hundred five million, six hundred seventy-one thousand, one hundred sixty-one".