40115453 has 4 divisors (see below), whose sum is σ = 45846240. Its totient is φ = 34384668.

The previous prime is 40115447. The next prime is 40115459. The reversal of 40115453 is 35451104.

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 an interprime number because it is at equal distance from previous prime (40115447) and next prime (40115459).

It is a cyclic number.

It is not a de Polignac number, because 40115453 - 2⁶ = 40115389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40115459) 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, 2865383 + ... + 2865396.

It is an arithmetic number, because the mean of its divisors is an integer number (11461560).

Almost surely, 2^40115453 is an apocalyptic number.

It is an amenable number.

40115453 is a deficient number, since it is larger than the sum of its proper divisors (5730787).

40115453 is an equidigital number, since it uses as much as digits as its factorization.

40115453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5730786.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 40115453 is about 6333.6761047594. The cubic root of 40115453 is about 342.3239096949.

Adding to 40115453 its reverse (35451104), we get a palindrome (75566557).

The spelling of 40115453 in words is "forty million, one hundred fifteen thousand, four hundred fifty-three".