40725145 has 8 divisors (see below), whose sum is σ = 48925440. Its totient is φ = 32543280.

The previous prime is 40725143. The next prime is 40725161. The reversal of 40725145 is 54152704.

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

It is not a de Polignac number, because 40725145 - 2¹ = 40725143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40725143) 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, 846 + ... + 9064.

It is an arithmetic number, because the mean of its divisors is an integer number (6115680).

Almost surely, 2^40725145 is an apocalyptic number.

It is an amenable number.

40725145 is a deficient number, since it is larger than the sum of its proper divisors (8200295).

40725145 is an equidigital number, since it uses as much as digits as its factorization.

40725145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9215.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 40725145 is about 6381.6255766066. The cubic root of 40725145 is about 344.0494593794.

Adding to 40725145 its reverse (54152704), we get a palindrome (94877849).

It can be divided in two parts, 407 and 25145, that added together give a palindrome (25552).

The spelling of 40725145 in words is "forty million, seven hundred twenty-five thousand, one hundred forty-five".