145534222513 has 4 divisors (see below), whose sum is σ = 145535572260. Its totient is φ = 145532872768.

The previous prime is 145534222511. The next prime is 145534222541. The reversal of 145534222513 is 315222435541.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55190695329 + 90343527184 = 234927^2 + 300572^2 .

It is a cyclic number.

It is not a de Polignac number, because 145534222513 - 2¹ = 145534222511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145534222511) 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, 497620 + ... + 733957.

It is an arithmetic number, because the mean of its divisors is an integer number (36383893065).

Almost surely, 2^145534222513 is an apocalyptic number.

It is an amenable number.

145534222513 is a deficient number, since it is larger than the sum of its proper divisors (1349747).

145534222513 is a wasteful number, since it uses less digits than its factorization.

145534222513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349746.

The product of its digits is 144000, while the sum is 37.

The spelling of 145534222513 in words is "one hundred forty-five billion, five hundred thirty-four million, two hundred twenty-two thousand, five hundred thirteen".