145110420431 has 4 divisors (see below), whose sum is σ = 152747811000. Its totient is φ = 137473029864.

The previous prime is 145110420397. The next prime is 145110420461. The reversal of 145110420431 is 134024011541.

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 145110420431 - 2¹⁸ = 145110158287 is a prime.

It is a super-2 number, since 2×145110420431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145110420431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145110420461) 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, 3818695256 + ... + 3818695293.

It is an arithmetic number, because the mean of its divisors is an integer number (38186952750).

Almost surely, 2^145110420431 is an apocalyptic number.

145110420431 is a deficient number, since it is larger than the sum of its proper divisors (7637390569).

145110420431 is an equidigital number, since it uses as much as digits as its factorization.

145110420431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7637390568.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 145110420431 its reverse (134024011541), we get a palindrome (279134431972).

The spelling of 145110420431 in words is "one hundred forty-five billion, one hundred ten million, four hundred twenty thousand, four hundred thirty-one".