145320000052 has 6 divisors (see below), whose sum is σ = 254310000098. Its totient is φ = 72660000024.

The previous prime is 145320000017. The next prime is 145320000073. The reversal of 145320000052 is 250000023541.

It can be written as a sum of positive squares in only one way, i.e., 75975204496 + 69344795556 = 275636^2 + 263334^2 .

It is a super-2 number, since 2×145320000052² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145319999978 and 145320000032.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18165000003 + ... + 18165000010.

Almost surely, 2^145320000052 is an apocalyptic number.

It is an amenable number.

145320000052 is a deficient number, since it is larger than the sum of its proper divisors (108990000046).

145320000052 is a wasteful number, since it uses less digits than its factorization.

145320000052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36330000017 (or 36330000015 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

Adding to 145320000052 its reverse (250000023541), we get a palindrome (395320023593).

The spelling of 145320000052 in words is "one hundred forty-five billion, three hundred twenty million, fifty-two", and thus it is an aban number.