40572031 has 2 divisors, whose sum is σ = 40572032. Its totient is φ = 40572030.

The previous prime is 40572019. The next prime is 40572041. The reversal of 40572031 is 13027504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40572031 - 2⁷ = 40571903 is a prime.

It is a super-2 number, since 2×40572031² = 3292179398929922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 40571993 and 40572011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40572041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20286015 + 20286016.

It is an arithmetic number, because the mean of its divisors is an integer number (20286016).

Almost surely, 2^40572031 is an apocalyptic number.

40572031 is the 4029-th centered pentagonal number.

40572031 is a deficient number, since it is larger than the sum of its proper divisors (1).

40572031 is an equidigital number, since it uses as much as digits as its factorization.

40572031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 40572031 is about 6369.6178064308. The cubic root of 40572031 is about 343.6177445602.

Adding to 40572031 its reverse (13027504), we get a palindrome (53599535).

The spelling of 40572031 in words is "forty million, five hundred seventy-two thousand, thirty-one".