145520431353 has 72 divisors (see below), whose sum is σ = 239221452288. Its totient is φ = 85089312000.

The previous prime is 145520431321. The next prime is 145520431393. The reversal of 145520431353 is 353134025541.

145520431353 is a `hidden beast` number, since 1 + 4 + 552 + 0 + 43 + 13 + 53 = 666.

It is not a de Polignac number, because 145520431353 - 2⁵ = 145520431321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145520431393) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 11370388 + ... + 11383178.

Almost surely, 2^145520431353 is an apocalyptic number.

It is an amenable number.

145520431353 is a deficient number, since it is larger than the sum of its proper divisors (93701020935).

145520431353 is a wasteful number, since it uses less digits than its factorization.

145520431353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13187 (or 13173 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 145520431353 its reverse (353134025541), we get a palindrome (498654456894).

The spelling of 145520431353 in words is "one hundred forty-five billion, five hundred twenty million, four hundred thirty-one thousand, three hundred fifty-three".