40570131 has 16 divisors (see below), whose sum is σ = 61952768. Its totient is φ = 23133600.

The previous prime is 40570129. The next prime is 40570141. The reversal of 40570131 is 13107504.

It is not a de Polignac number, because 40570131 - 2¹ = 40570129 is a prime.

It is a super-2 number, since 2×40570131² = 3291871058714322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40570098 and 40570107.

It is not an unprimeable number, because it can be changed into a prime (40570141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9576 + ... + 13146.

It is an arithmetic number, because the mean of its divisors is an integer number (3872048).

Almost surely, 2^40570131 is an apocalyptic number.

40570131 is a deficient number, since it is larger than the sum of its proper divisors (21382637).

40570131 is a wasteful number, since it uses less digits than its factorization.

40570131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4122.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 40570131 is about 6369.4686591583. The cubic root of 40570131 is about 343.6123805702.

Adding to 40570131 its reverse (13107504), we get a palindrome (53677635).

The spelling of 40570131 in words is "forty million, five hundred seventy thousand, one hundred thirty-one".