145221231054 has 16 divisors (see below), whose sum is σ = 291476068560. Its totient is φ = 48234809280.

The previous prime is 145221230993. The next prime is 145221231073. The reversal of 145221231054 is 450132122541.

It is a super-3 number, since 3×145221231054³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43065109 + ... + 43068480.

It is an arithmetic number, because the mean of its divisors is an integer number (18217254285).

Almost surely, 2^145221231054 is an apocalyptic number.

145221231054 is an abundant number, since it is smaller than the sum of its proper divisors (146254837506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145221231054 is a wasteful number, since it uses less digits than its factorization.

145221231054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86133875.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 145221231054 its reverse (450132122541), we get a palindrome (595353353595).

The spelling of 145221231054 in words is "one hundred forty-five billion, two hundred twenty-one million, two hundred thirty-one thousand, fifty-four".