145091992322505 has 8 divisors (see below), whose sum is σ = 232147187716032. Its totient is φ = 77382395905328.

The previous prime is 145091992322489. The next prime is 145091992322527. The reversal of 145091992322505 is 505223299190541.

145091992322505 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145091992322505 - 2⁴ = 145091992322489 is a prime.

It is a super-2 number, since 2×145091992322505² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4836399744069 + ... + 4836399744098.

It is an arithmetic number, because the mean of its divisors is an integer number (29018398464504).

Almost surely, 2^{145091992322505} is an apocalyptic number.

145091992322505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145091992322505 is a deficient number, since it is larger than the sum of its proper divisors (87055195393527).

145091992322505 is an equidigital number, since it uses as much as digits as its factorization.

145091992322505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9672799488175.

The product of its (nonzero) digits is 8748000, while the sum is 57.

The spelling of 145091992322505 in words is "one hundred forty-five trillion, ninety-one billion, nine hundred ninety-two million, three hundred twenty-two thousand, five hundred five".