40375161 has 6 divisors (see below), whose sum is σ = 58319690. Its totient is φ = 26916768.

The previous prime is 40375157. The next prime is 40375193. The reversal of 40375161 is 16157304.

It can be written as a sum of positive squares in only one way, i.e., 35176761 + 5198400 = 5931^2 + 2280^2 .

It is not a de Polignac number, because 40375161 - 2² = 40375157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40375121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2243056 + ... + 2243073.

Almost surely, 2^40375161 is an apocalyptic number.

It is an amenable number.

40375161 is a deficient number, since it is larger than the sum of its proper divisors (17944529).

40375161 is a wasteful number, since it uses less digits than its factorization.

40375161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4486135 (or 4486132 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 40375161 is about 6354.1451824773. The cubic root of 40375161 is about 343.0610577894.

The spelling of 40375161 in words is "forty million, three hundred seventy-five thousand, one hundred sixty-one".