145271748825 has 72 divisors (see below), whose sum is σ = 297464526528. Its totient is φ = 66388602240.

The previous prime is 145271748803. The next prime is 145271748827. The reversal of 145271748825 is 528847172541.

145271748825 is a `hidden beast` number, since 1 + 4 + 527 + 17 + 4 + 88 + 25 = 666.

It is not a de Polignac number, because 145271748825 - 2²¹ = 145269651673 is a prime.

It is a super-2 number, since 2×145271748825² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145271748827) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5551422 + ... + 5577528.

Almost surely, 2^145271748825 is an apocalyptic number.

145271748825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145271748825 is an abundant number, since it is smaller than the sum of its proper divisors (152192777703).

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

145271748825 is a wasteful number, since it uses less digits than its factorization.

145271748825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29663 (or 29655 counting only the distinct ones).

The product of its digits is 5017600, while the sum is 54.

The spelling of 145271748825 in words is "one hundred forty-five billion, two hundred seventy-one million, seven hundred forty-eight thousand, eight hundred twenty-five".