161051053 has 4 divisors (see below), whose sum is σ = 161081820. Its totient is φ = 161020288.

The previous prime is 161051017. The next prime is 161051089. The reversal of 161051053 is 350150161.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (161051017) and next prime (161051089).

It can be written as a sum of positive squares in 2 ways, for example, as 143928009 + 17123044 = 11997^2 + 4138^2 .

It is a cyclic number.

It is not a de Polignac number, because 161051053 - 2⁹ = 161050541 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 (161051003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5350 + ... + 18727.

It is an arithmetic number, because the mean of its divisors is an integer number (40270455).

Almost surely, 2^161051053 is an apocalyptic number.

It is an amenable number.

161051053 is a deficient number, since it is larger than the sum of its proper divisors (30767).

161051053 is an equidigital number, since it uses as much as digits as its factorization.

161051053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30766.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 161051053 is about 12690.5891510205. The cubic root of 161051053 is about 544.0696784397.

The spelling of 161051053 in words is "one hundred sixty-one million, fifty-one thousand, fifty-three".