145958127481 has 4 divisors (see below), whose sum is σ = 145958891764. Its totient is φ = 145957363200.

The previous prime is 145958127479. The next prime is 145958127493. The reversal of 145958127481 is 184721859541.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 184721859541 = 26041 ⋅7093501.

It can be written as a sum of positive squares in 2 ways, for example, as 36651188025 + 109306939456 = 191445^2 + 330616^2 .

It is a cyclic number.

It is not a de Polignac number, because 145958127481 - 2¹ = 145958127479 is a prime.

It is a super-2 number, since 2×145958127481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145958827481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178201 + ... + 568921.

It is an arithmetic number, because the mean of its divisors is an integer number (36489722941).

Almost surely, 2^145958127481 is an apocalyptic number.

It is an amenable number.

145958127481 is a deficient number, since it is larger than the sum of its proper divisors (764283).

145958127481 is an equidigital number, since it uses as much as digits as its factorization.

145958127481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764282.

The product of its digits is 3225600, while the sum is 55.

The spelling of 145958127481 in words is "one hundred forty-five billion, nine hundred fifty-eight million, one hundred twenty-seven thousand, four hundred eighty-one".