40143195 has 20 divisors (see below), whose sum is σ = 71961120. Its totient is φ = 21409488.

The previous prime is 40143193. The next prime is 40143197. The reversal of 40143195 is 59134104.

It is an interprime number because it is at equal distance from previous prime (40143193) and next prime (40143197).

It is not a de Polignac number, because 40143195 - 2¹ = 40143193 is a prime.

It is a super-2 number, since 2×40143195² = 3222952209616050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40143193) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 49155 + ... + 49964.

It is an arithmetic number, because the mean of its divisors is an integer number (3598056).

Almost surely, 2^40143195 is an apocalyptic number.

40143195 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40143195 is a deficient number, since it is larger than the sum of its proper divisors (31817925).

40143195 is an equidigital number, since it uses as much as digits as its factorization.

40143195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99136 (or 99127 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 40143195 is about 6335.8657656235. The cubic root of 40143195 is about 342.4028033287.

Adding to 40143195 its reverse (59134104), we get a palindrome (99277299).

The spelling of 40143195 in words is "forty million, one hundred forty-three thousand, one hundred ninety-five".