40145011 has 4 divisors (see below), whose sum is σ = 40411024. Its totient is φ = 39879000.

The previous prime is 40144991. The next prime is 40145023. The reversal of 40145011 is 11054104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40145011 - 2⁷ = 40144883 is a prime.

It is a super-2 number, since 2×40145011² = 3223243816380242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40145411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132780 + ... + 133081.

It is an arithmetic number, because the mean of its divisors is an integer number (10102756).

Almost surely, 2^40145011 is an apocalyptic number.

40145011 is a deficient number, since it is larger than the sum of its proper divisors (266013).

40145011 is a wasteful number, since it uses less digits than its factorization.

40145011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266012.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 40145011 is about 6336.0090751198. The cubic root of 40145011 is about 342.4079664629.

Adding to 40145011 its reverse (11054104), we get a palindrome (51199115).

It can be divided in two parts, 4014 and 5011, that added together give a square (9025 = 95²).

The spelling of 40145011 in words is "forty million, one hundred forty-five thousand, eleven".