145415044232505 has 24 divisors (see below), whose sum is σ = 255814724585472. Its totient is φ = 76397157565344.

The previous prime is 145415044232501. The next prime is 145415044232543. The reversal of 145415044232505 is 505232440514541.

145415044232505 is a `hidden beast` number, since 1 + 4 + 5 + 4 + 150 + 442 + 3 + 2 + 50 + 5 = 666.

It is not a de Polignac number, because 145415044232505 - 2² = 145415044232501 is a prime.

It is a super-2 number, since 2×145415044232505² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (145415044232501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24115261369 + ... + 24115267398.

It is an arithmetic number, because the mean of its divisors is an integer number (10658946857728).

Almost surely, 2^{145415044232505} is an apocalyptic number.

145415044232505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145415044232505 is a deficient number, since it is larger than the sum of its proper divisors (110399680352967).

145415044232505 is a wasteful number, since it uses less digits than its factorization.

145415044232505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48230528845 (or 48230528842 counting only the distinct ones).

The product of its (nonzero) digits is 1920000, while the sum is 45.

The spelling of 145415044232505 in words is "one hundred forty-five trillion, four hundred fifteen billion, forty-four million, two hundred thirty-two thousand, five hundred five".