145523511010513 has 8 divisors (see below), whose sum is σ = 149464740800168. Its totient is φ = 141582710795904.

The previous prime is 145523511010489. The next prime is 145523511010529. The reversal of 145523511010513 is 315010115325541.

It can be written as a sum of positive squares in 4 ways, for example, as 76637295758529 + 68886215251984 = 8754273^2 + 8299772^2 .

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 145523511010513 - 2¹⁷ = 145523510879441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145523511070513) 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, 106707006 + ... + 108062167.

It is an arithmetic number, because the mean of its divisors is an integer number (18683092600021).

Almost surely, 2^{145523511010513} is an apocalyptic number.

It is an amenable number.

145523511010513 is a deficient number, since it is larger than the sum of its proper divisors (3941229789655).

145523511010513 is a wasteful number, since it uses less digits than its factorization.

145523511010513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214787523.

The product of its (nonzero) digits is 45000, while the sum is 37.

The spelling of 145523511010513 in words is "one hundred forty-five trillion, five hundred twenty-three billion, five hundred eleven million, ten thousand, five hundred thirteen".