40153545 has 36 divisors (see below), whose sum is σ = 72150156. Its totient is φ = 20657280.

The previous prime is 40153543. The next prime is 40153549. The reversal of 40153545 is 54535104.

It can be written as a sum of positive squares in 6 ways, for example, as 46656 + 40106889 = 216^2 + 6333^2 .

It is not a de Polignac number, because 40153545 - 2¹ = 40153543 is a prime.

It is a super-2 number, since 2×40153545² = 3224614352134050, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (40153543) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 37315 + ... + 38375.

It is an arithmetic number, because the mean of its divisors is an integer number (2004171).

Almost surely, 2^40153545 is an apocalyptic number.

40153545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40153545 is a deficient number, since it is larger than the sum of its proper divisors (31996611).

40153545 is a wasteful number, since it uses less digits than its factorization.

40153545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130 (or 1098 counting only the distinct ones).

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

The square root of 40153545 is about 6336.6824916513. The cubic root of 40153545 is about 342.4322276972.

Adding to 40153545 its reverse (54535104), we get a palindrome (94688649).

The spelling of 40153545 in words is "forty million, one hundred fifty-three thousand, five hundred forty-five".