40671529 has 2 divisors, whose sum is σ = 40671530. Its totient is φ = 40671528.

The previous prime is 40671509. The next prime is 40671557. The reversal of 40671529 is 92517604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33120025 + 7551504 = 5755^2 + 2748^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40671529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40671494 and 40671503.

It is not a weakly prime, because it can be changed into another prime (40671509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20335764 + 20335765.

It is an arithmetic number, because the mean of its divisors is an integer number (20335765).

Almost surely, 2^40671529 is an apocalyptic number.

It is an amenable number.

40671529 is a deficient number, since it is larger than the sum of its proper divisors (1).

40671529 is an equidigital number, since it uses as much as digits as its factorization.

40671529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 40671529 is about 6377.4233825268. The cubic root of 40671529 is about 343.8984089092.

The spelling of 40671529 in words is "forty million, six hundred seventy-one thousand, five hundred twenty-nine".