161043753 has 16 divisors (see below), whose sum is σ = 243414080. Its totient is φ = 93887424.

The previous prime is 161043749. The next prime is 161043763. The reversal of 161043753 is 357340161.

It is not a de Polignac number, because 161043753 - 2² = 161043749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161043753.

It is not an unprimeable number, because it can be changed into a prime (161043763) 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 15 ways as a sum of consecutive naturals, for example, 107926 + ... + 109407.

It is an arithmetic number, because the mean of its divisors is an integer number (15213380).

Almost surely, 2^161043753 is an apocalyptic number.

161043753 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

161043753 is a deficient number, since it is larger than the sum of its proper divisors (82370327).

161043753 is a wasteful number, since it uses less digits than its factorization.

161043753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217368.

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

The square root of 161043753 is about 12690.3015330606. The cubic root of 161043753 is about 544.0614579229.

The spelling of 161043753 in words is "one hundred sixty-one million, forty-three thousand, seven hundred fifty-three".