40951161 has 12 divisors (see below), whose sum is σ = 61191780. Its totient is φ = 26359200.

The previous prime is 40951159. The next prime is 40951171. The reversal of 40951161 is 16115904.

It can be written as a sum of positive squares in 2 ways, for example, as 12531600 + 28419561 = 3540^2 + 5331^2 .

It is not a de Polignac number, because 40951161 - 2¹ = 40951159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40951111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78190 + ... + 78711.

It is an arithmetic number, because the mean of its divisors is an integer number (5099315).

Almost surely, 2^40951161 is an apocalyptic number.

It is an amenable number.

40951161 is a deficient number, since it is larger than the sum of its proper divisors (20240619).

40951161 is a wasteful number, since it uses less digits than its factorization.

40951161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156936 (or 156933 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 40951161 is about 6399.3094158667. The cubic root of 40951161 is about 344.6847529856.

The spelling of 40951161 in words is "forty million, nine hundred fifty-one thousand, one hundred sixty-one".