240445431151 has 4 divisors (see below), whose sum is σ = 246309953904. Its totient is φ = 234580908400.

The previous prime is 240445431103. The next prime is 240445431211. The reversal of 240445431151 is 151134544042.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240445431151 is a prime.

It is a super-2 number, since 2×240445431151² (a number of 24 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 (240445401151) 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, 2932261315 + ... + 2932261396.

It is an arithmetic number, because the mean of its divisors is an integer number (61577488476).

Almost surely, 2^240445431151 is an apocalyptic number.

240445431151 is a deficient number, since it is larger than the sum of its proper divisors (5864522753).

240445431151 is an equidigital number, since it uses as much as digits as its factorization.

240445431151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5864522752.

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 240445431151 its reverse (151134544042), we get a palindrome (391579975193).

The spelling of 240445431151 in words is "two hundred forty billion, four hundred forty-five million, four hundred thirty-one thousand, one hundred fifty-one".