145552310431441 has 4 divisors (see below), whose sum is σ = 146026422192112. Its totient is φ = 145078198670772.

The previous prime is 145552310431427. The next prime is 145552310431469. The reversal of 145552310431441 is 144134013255541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145552310431441 - 2¹⁵ = 145552310398673 is a prime.

It is a super-2 number, since 2×145552310431441² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145552310431481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237055879875 + ... + 237055880488.

It is an arithmetic number, because the mean of its divisors is an integer number (36506605548028).

Almost surely, 2^{145552310431441} is an apocalyptic number.

It is an amenable number.

145552310431441 is a deficient number, since it is larger than the sum of its proper divisors (474111760671).

145552310431441 is an equidigital number, since it uses as much as digits as its factorization.

145552310431441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474111760670.

The product of its (nonzero) digits is 576000, while the sum is 43.

Adding to 145552310431441 its reverse (144134013255541), we get a palindrome (289686323686982).

The spelling of 145552310431441 in words is "one hundred forty-five trillion, five hundred fifty-two billion, three hundred ten million, four hundred thirty-one thousand, four hundred forty-one".