145155250220545 has 32 divisors (see below), whose sum is σ = 178257602793600. Its totient is φ = 113451380689920.

The previous prime is 145155250220527. The next prime is 145155250220731. The reversal of 145155250220545 is 545022052551541.

It is not a de Polignac number, because 145155250220545 - 2⁹ = 145155250220033 is a prime.

It is a super-2 number, since 2×145155250220545² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145155250220495 and 145155250220504.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4447162 + ... + 17609308.

It is an arithmetic number, because the mean of its divisors is an integer number (5570550087300).

Almost surely, 2^{145155250220545} is an apocalyptic number.

It is an amenable number.

145155250220545 is a deficient number, since it is larger than the sum of its proper divisors (33102352573055).

145155250220545 is a wasteful number, since it uses less digits than its factorization.

145155250220545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13162545.

The product of its (nonzero) digits is 2000000, while the sum is 46.

The spelling of 145155250220545 in words is "one hundred forty-five trillion, one hundred fifty-five billion, two hundred fifty million, two hundred twenty thousand, five hundred forty-five".