40553145 has 24 divisors (see below), whose sum is σ = 70641792. Its totient is φ = 21520800.

The previous prime is 40553137. The next prime is 40553167. The reversal of 40553145 is 54135504.

It is not a de Polignac number, because 40553145 - 2³ = 40553137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7360 + ... + 11630.

It is an arithmetic number, because the mean of its divisors is an integer number (2943408).

Almost surely, 2^40553145 is an apocalyptic number.

40553145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40553145 is a deficient number, since it is larger than the sum of its proper divisors (30088647).

40553145 is a wasteful number, since it uses less digits than its factorization.

40553145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4493 (or 4490 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 40553145 is about 6368.1351273352. The cubic root of 40553145 is about 343.5644190568.

Adding to 40553145 its reverse (54135504), we get a palindrome (94688649).

The spelling of 40553145 in words is "forty million, five hundred fifty-three thousand, one hundred forty-five".