40752161 has 4 divisors (see below), whose sum is σ = 40767792. Its totient is φ = 40736532.

The previous prime is 40752139. The next prime is 40752193. The reversal of 40752161 is 16125704.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40752161 - 2⁶ = 40752097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40752161.

It is not an unprimeable number, because it can be changed into a prime (40752461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2855 + ... + 9468.

It is an arithmetic number, because the mean of its divisors is an integer number (10191948).

Almost surely, 2^40752161 is an apocalyptic number.

It is an amenable number.

40752161 is a deficient number, since it is larger than the sum of its proper divisors (15631).

40752161 is a wasteful number, since it uses less digits than its factorization.

40752161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15630.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 40752161 is about 6383.7419277411. The cubic root of 40752161 is about 344.1255203784.

Adding to 40752161 its reverse (16125704), we get a palindrome (56877865).

The spelling of 40752161 in words is "forty million, seven hundred fifty-two thousand, one hundred sixty-one".