145045500031 has 4 divisors (see below), whose sum is σ = 145049705064. Its totient is φ = 145041295000.

The previous prime is 145045499953. The next prime is 145045500037. The reversal of 145045500031 is 130005540541.

145045500031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130005540541 = 193 ⋅673603837.

It is a cyclic number.

It is not a de Polignac number, because 145045500031 - 2²³ = 145037111423 is a prime.

It is a super-2 number, since 2×145045500031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145045500037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2050345 + ... + 2119906.

It is an arithmetic number, because the mean of its divisors is an integer number (36262426266).

Almost surely, 2^145045500031 is an apocalyptic number.

145045500031 is a deficient number, since it is larger than the sum of its proper divisors (4205033).

145045500031 is an equidigital number, since it uses as much as digits as its factorization.

145045500031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4205032.

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 145045500031 in words is "one hundred forty-five billion, forty-five million, five hundred thousand, thirty-one".