145356513145 has 8 divisors (see below), whose sum is σ = 174665784456. Its totient is φ = 116126564736.

The previous prime is 145356513121. The next prime is 145356513157. The reversal of 145356513145 is 541315653541.

It can be written as a sum of positive squares in 4 ways, for example, as 41998764096 + 103357749049 = 204936^2 + 321493^2 .

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 145356513145 - 2⁹ = 145356512633 is a prime.

It is a super-2 number, since 2×145356513145² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

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, 19826692 + ... + 19834021.

It is an arithmetic number, because the mean of its divisors is an integer number (21833223057).

Almost surely, 2^145356513145 is an apocalyptic number.

It is an amenable number.

145356513145 is a deficient number, since it is larger than the sum of its proper divisors (29309271311).

145356513145 is an equidigital number, since it uses as much as digits as its factorization.

145356513145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39661451.

The product of its digits is 540000, while the sum is 43.

The spelling of 145356513145 in words is "one hundred forty-five billion, three hundred fifty-six million, five hundred thirteen thousand, one hundred forty-five".