145331224404555 has 48 divisors (see below), whose sum is σ = 276784592984064. Its totient is φ = 64892081580480.

The previous prime is 145331224404503. The next prime is 145331224404557. The reversal of 145331224404555 is 555404422133541.

It is a happy number.

It is not a de Polignac number, because 145331224404555 - 2¹⁰ = 145331224403531 is a prime.

It is a super-3 number, since 3×145331224404555³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (145331224404557) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2299149291 + ... + 2299212500.

It is an arithmetic number, because the mean of its divisors is an integer number (5766345687168).

Almost surely, 2^{145331224404555} is an apocalyptic number.

145331224404555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145331224404555 is a deficient number, since it is larger than the sum of its proper divisors (131453368579509).

145331224404555 is a wasteful number, since it uses less digits than its factorization.

145331224404555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4598361856 (or 4598361849 counting only the distinct ones).

The product of its (nonzero) digits is 5760000, while the sum is 48.

The spelling of 145331224404555 in words is "one hundred forty-five trillion, three hundred thirty-one billion, two hundred twenty-four million, four hundred four thousand, five hundred fifty-five".