145415421254005 has 96 divisors (see below), whose sum is σ = 215938010937600. Its totient is φ = 93463955730432.

The previous prime is 145415421253987. The next prime is 145415421254011. The reversal of 145415421254005 is 500452124514541.

It is not a de Polignac number, because 145415421254005 - 2¹³ = 145415421245813 is a prime.

It is a super-2 number, since 2×145415421254005² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1592518291 + ... + 1592609599.

It is an arithmetic number, because the mean of its divisors is an integer number (2249354280600).

Almost surely, 2^{145415421254005} is an apocalyptic number.

It is an amenable number.

145415421254005 is a deficient number, since it is larger than the sum of its proper divisors (70522589683595).

145415421254005 is a wasteful number, since it uses less digits than its factorization.

145415421254005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94971 (or 94964 counting only the distinct ones).

The product of its (nonzero) digits is 640000, while the sum is 43.

Adding to 145415421254005 its reverse (500452124514541), we get a palindrome (645867545768546).

The spelling of 145415421254005 in words is "one hundred forty-five trillion, four hundred fifteen billion, four hundred twenty-one million, two hundred fifty-four thousand, five".