40615161 has 8 divisors (see below), whose sum is σ = 54712224. Its totient is φ = 26797440.

The previous prime is 40615153. The next prime is 40615181. The reversal of 40615161 is 16151604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40615161 - 2³ = 40615153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40615111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69495 + ... + 70076.

It is an arithmetic number, because the mean of its divisors is an integer number (6839028).

Almost surely, 2^40615161 is an apocalyptic number.

It is an amenable number.

40615161 is a deficient number, since it is larger than the sum of its proper divisors (14097063).

40615161 is a wasteful number, since it uses less digits than its factorization.

40615161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139671.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 40615161 is about 6373.0025105911. The cubic root of 40615161 is about 343.7394621122.

Adding to 40615161 its reverse (16151604), we get a palindrome (56766765).

The spelling of 40615161 in words is "forty million, six hundred fifteen thousand, one hundred sixty-one".