40161053 has 4 divisors (see below), whose sum is σ = 40206240. Its totient is φ = 40115868.

The previous prime is 40161049. The next prime is 40161061. The reversal of 40161053 is 35016104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40161053 - 2² = 40161049 is a prime.

It is a super-2 number, since 2×40161053² = 3225820356137618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40161553) 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, 21233 + ... + 23046.

It is an arithmetic number, because the mean of its divisors is an integer number (10051560).

Almost surely, 2^40161053 is an apocalyptic number.

It is an amenable number.

40161053 is a deficient number, since it is larger than the sum of its proper divisors (45187).

40161053 is an equidigital number, since it uses as much as digits as its factorization.

40161053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45186.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 40161053 is about 6337.2748875207. The cubic root of 40161053 is about 342.4535692827.

Adding to 40161053 its reverse (35016104), we get a palindrome (75177157).

The spelling of 40161053 in words is "forty million, one hundred sixty-one thousand, fifty-three".