145125423331545 has 32 divisors (see below), whose sum is σ = 242302442572800. Its totient is φ = 74033139685824.

The previous prime is 145125423331523. The next prime is 145125423331549. The reversal of 145125423331545 is 545133324521541.

It is not a de Polignac number, because 145125423331545 - 2²¹ = 145125421234393 is a prime.

It is a super-2 number, since 2×145125423331545² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145125423331494 and 145125423331503.

It is not an unprimeable number, because it can be changed into a prime (145125423331549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8531826 + ... + 19053684.

It is an arithmetic number, because the mean of its divisors is an integer number (7571951330400).

Almost surely, 2^{145125423331545} is an apocalyptic number.

145125423331545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145125423331545 is a deficient number, since it is larger than the sum of its proper divisors (97177019241255).

145125423331545 is a wasteful number, since it uses less digits than its factorization.

145125423331545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10561869.

The product of its digits is 4320000, while the sum is 48.

The spelling of 145125423331545 in words is "one hundred forty-five trillion, one hundred twenty-five billion, four hundred twenty-three million, three hundred thirty-one thousand, five hundred forty-five".