145431243045 has 80 divisors (see below), whose sum is σ = 286145082432. Its totient is φ = 70079178240.

The previous prime is 145431243037. The next prime is 145431243059. The reversal of 145431243045 is 540342134541.

145431243045 is a `hidden beast` number, since 145 + 43 + 1 + 2 + 430 + 45 = 666.

It is not a de Polignac number, because 145431243045 - 2³ = 145431243037 is a prime.

It is a super-2 number, since 2×145431243045² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 626029 + ... + 826301.

Almost surely, 2^145431243045 is an apocalyptic number.

145431243045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145431243045 is a deficient number, since it is larger than the sum of its proper divisors (140713839387).

145431243045 is a wasteful number, since it uses less digits than its factorization.

145431243045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200464 (or 200455 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 145431243045 its reverse (540342134541), we get a palindrome (685773377586).

The spelling of 145431243045 in words is "one hundred forty-five billion, four hundred thirty-one million, two hundred forty-three thousand, forty-five".