40316121 has 12 divisors (see below), whose sum is σ = 58558500. Its totient is φ = 26727840.

The previous prime is 40316117. The next prime is 40316141. The reversal of 40316121 is 12161304.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19713600 + 20602521 = 4440^2 + 4539^2 .

It is not a de Polignac number, because 40316121 - 2² = 40316117 is a prime.

It is a super-2 number, since 2×40316121² = 3250779224973282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40316094 and 40316103.

It is not an unprimeable number, because it can be changed into a prime (40316141) 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, 10746 + ... + 14003.

It is an arithmetic number, because the mean of its divisors is an integer number (4879875).

Almost surely, 2^40316121 is an apocalyptic number.

It is an amenable number.

40316121 is a deficient number, since it is larger than the sum of its proper divisors (18242379).

40316121 is a wasteful number, since it uses less digits than its factorization.

40316121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24936 (or 24933 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 40316121 is about 6349.4976966686. The cubic root of 40316121 is about 342.8937585151.

Adding to 40316121 its reverse (12161304), we get a palindrome (52477425).

The spelling of 40316121 in words is "forty million, three hundred sixteen thousand, one hundred twenty-one".