145528150945 has 4 divisors (see below), whose sum is σ = 174633781140. Its totient is φ = 116422520752.

The previous prime is 145528150927. The next prime is 145528151017. The reversal of 145528150945 is 549051825541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 549051825541 = 31 ⋅17711349211.

It can be written as a sum of positive squares in 2 ways, for example, as 90120640401 + 55407510544 = 300201^2 + 235388^2 .

It is a cyclic number.

It is not a de Polignac number, because 145528150945 - 2¹¹ = 145528148897 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14552815090 + ... + 14552815099.

It is an arithmetic number, because the mean of its divisors is an integer number (43658445285).

Almost surely, 2^145528150945 is an apocalyptic number.

It is an amenable number.

145528150945 is a deficient number, since it is larger than the sum of its proper divisors (29105630195).

145528150945 is an equidigital number, since it uses as much as digits as its factorization.

145528150945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29105630194.

The product of its (nonzero) digits is 1440000, while the sum is 49.

The spelling of 145528150945 in words is "one hundred forty-five billion, five hundred twenty-eight million, one hundred fifty thousand, nine hundred forty-five".