40154022151 has 4 divisors (see below), whose sum is σ = 42516023472. Its totient is φ = 37792020832.

The previous prime is 40154022149. The next prime is 40154022197. The reversal of 40154022151 is 15122045104.

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

It is a cyclic number.

It is not a de Polignac number, because 40154022151 - 2¹ = 40154022149 is a prime.

It is a super-2 number, since 2×40154022151² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40154022101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1181000635 + ... + 1181000668.

It is an arithmetic number, because the mean of its divisors is an integer number (10629005868).

Almost surely, 2^40154022151 is an apocalyptic number.

40154022151 is a deficient number, since it is larger than the sum of its proper divisors (2362001321).

40154022151 is a wasteful number, since it uses less digits than its factorization.

40154022151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2362001320.

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 40154022151 its reverse (15122045104), we get a palindrome (55276067255).

The spelling of 40154022151 in words is "forty billion, one hundred fifty-four million, twenty-two thousand, one hundred fifty-one".