161040347 has 8 divisors (see below), whose sum is σ = 174076560. Its totient is φ = 148096800.

The previous prime is 161040343. The next prime is 161040361. The reversal of 161040347 is 743040161.

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 161040347 - 2² = 161040343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161040343) 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, 19529 + ... + 26522.

It is an arithmetic number, because the mean of its divisors is an integer number (21759570).

Almost surely, 2^161040347 is an apocalyptic number.

161040347 is a deficient number, since it is larger than the sum of its proper divisors (13036213).

161040347 is a wasteful number, since it uses less digits than its factorization.

161040347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46333.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 161040347 is about 12690.1673353821. The cubic root of 161040347 is about 544.0576223474.

The spelling of 161040347 in words is "one hundred sixty-one million, forty thousand, three hundred forty-seven".