45138511 has 8 divisors (see below), whose sum is σ = 50830848. Its totient is φ = 39711000.

The previous prime is 45138497. The next prime is 45138551. The reversal of 45138511 is 11583154.

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

It is not a de Polignac number, because 45138511 - 2¹¹ = 45136463 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 45138511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45138551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65845 + ... + 66526.

It is an arithmetic number, because the mean of its divisors is an integer number (6353856).

Almost surely, 2^45138511 is an apocalyptic number.

45138511 is a deficient number, since it is larger than the sum of its proper divisors (5692337).

45138511 is a wasteful number, since it uses less digits than its factorization.

45138511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132413.

The product of its digits is 2400, while the sum is 28.

The square root of 45138511 is about 6718.5200007144. The cubic root of 45138511 is about 356.0538965447.

The spelling of 45138511 in words is "forty-five million, one hundred thirty-eight thousand, five hundred eleven".