40535032154 has 4 divisors (see below), whose sum is σ = 60802548234. Its totient is φ = 20267516076.

The previous prime is 40535032151. The next prime is 40535032189. The reversal of 40535032154 is 45123053504.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 40362819025 + 172213129 = 200905^2 + 13123^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40535032154.

It is not an unprimeable number, because it can be changed into a prime (40535032151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10133758037 + ... + 10133758040.

Almost surely, 2^40535032154 is an apocalyptic number.

40535032154 is a deficient number, since it is larger than the sum of its proper divisors (20267516080).

40535032154 is a wasteful number, since it uses less digits than its factorization.

40535032154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20267516079.

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 40535032154 its reverse (45123053504), we get a palindrome (85658085658).

The spelling of 40535032154 in words is "forty billion, five hundred thirty-five million, thirty-two thousand, one hundred fifty-four".