145504311105245 has 8 divisors (see below), whose sum is σ = 174638361948120. Its totient is φ = 116381323136320.

The previous prime is 145504311105221. The next prime is 145504311105247. The reversal of 145504311105245 is 542501113405541.

It can be written as a sum of positive squares in 4 ways, for example, as 20880266277049 + 124624044828196 = 4569493^2 + 11163514^2 .

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

It is not a de Polignac number, because 145504311105245 - 2¹⁶ = 145504311039709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145504311105247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2765689550 + ... + 2765742159.

It is an arithmetic number, because the mean of its divisors is an integer number (21829795243515).

Almost surely, 2^{145504311105245} is an apocalyptic number.

It is an amenable number.

145504311105245 is a deficient number, since it is larger than the sum of its proper divisors (29134050842875).

145504311105245 is an equidigital number, since it uses as much as digits as its factorization.

145504311105245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5531436975.

The product of its (nonzero) digits is 240000, while the sum is 41.

The spelling of 145504311105245 in words is "one hundred forty-five trillion, five hundred four billion, three hundred eleven million, one hundred five thousand, two hundred forty-five".