40492141 has 2 divisors, whose sum is σ = 40492142. Its totient is φ = 40492140.

The previous prime is 40492139. The next prime is 40492157. The reversal of 40492141 is 14129404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38378025 + 2114116 = 6195^2 + 1454^2 .

It is a cyclic number.

It is not a de Polignac number, because 40492141 - 2¹ = 40492139 is a prime.

It is a super-4 number, since 4×40492141⁴ (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

Together with 40492139, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40492741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20246070 + 20246071.

It is an arithmetic number, because the mean of its divisors is an integer number (20246071).

Almost surely, 2^40492141 is an apocalyptic number.

It is an amenable number.

40492141 is a deficient number, since it is larger than the sum of its proper divisors (1).

40492141 is an equidigital number, since it uses as much as digits as its factorization.

40492141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 40492141 is about 6363.3435393667. The cubic root of 40492141 is about 343.3920582198.

The spelling of 40492141 in words is "forty million, four hundred ninety-two thousand, one hundred forty-one".