145221114645 has 24 divisors (see below), whose sum is σ = 252606078816. Its totient is φ = 77177575008.

The previous prime is 145221114629. The next prime is 145221114673. The reversal of 145221114645 is 546411122541.

145221114645 is a `hidden beast` number, since 1 + 4 + 5 + 2 + 2 + 1 + 1 + 1 + 4 + 645 = 666.

It is not a de Polignac number, because 145221114645 - 2⁴ = 145221114629 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5688919 + ... + 5714388.

It is an arithmetic number, because the mean of its divisors is an integer number (10525253284).

Almost surely, 2^145221114645 is an apocalyptic number.

145221114645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145221114645 is a deficient number, since it is larger than the sum of its proper divisors (107384964171).

145221114645 is a wasteful number, since it uses less digits than its factorization.

145221114645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11403601 (or 11403598 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The spelling of 145221114645 in words is "one hundred forty-five billion, two hundred twenty-one million, one hundred fourteen thousand, six hundred forty-five".