145025414781 has 36 divisors (see below), whose sum is σ = 213927538752. Its totient is φ = 87312142944.

The previous prime is 145025414753. The next prime is 145025414819. The reversal of 145025414781 is 187414520541.

It is not a de Polignac number, because 145025414781 - 2⁹ = 145025414269 is a prime.

It is a super-2 number, since 2×145025414781² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145025404781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 58784910 + ... + 58787376.

It is an arithmetic number, because the mean of its divisors is an integer number (5942431632).

Almost surely, 2^145025414781 is an apocalyptic number.

It is an amenable number.

145025414781 is a deficient number, since it is larger than the sum of its proper divisors (68902123971).

145025414781 is an frugal number, since it uses more digits than its factorization.

145025414781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5010 (or 2530 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 42.

The spelling of 145025414781 in words is "one hundred forty-five billion, twenty-five million, four hundred fourteen thousand, seven hundred eighty-one".