161043357 has 16 divisors (see below), whose sum is σ = 222566400. Its totient is φ = 103470000.

The previous prime is 161043349. The next prime is 161043361. The reversal of 161043357 is 753340161.

It is not a de Polignac number, because 161043357 - 2³ = 161043349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161043307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19894 + ... + 26792.

It is an arithmetic number, because the mean of its divisors is an integer number (13910400).

Almost surely, 2^161043357 is an apocalyptic number.

It is an amenable number.

161043357 is a deficient number, since it is larger than the sum of its proper divisors (61523043).

161043357 is a wasteful number, since it uses less digits than its factorization.

161043357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7184.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 161043357 is about 12690.2859305849. The cubic root of 161043357 is about 544.0610119809.

The spelling of 161043357 in words is "one hundred sixty-one million, forty-three thousand, three hundred fifty-seven".