145435506515 has 32 divisors (see below), whose sum is σ = 202376180160. Its totient is φ = 99367686144.

The previous prime is 145435506511. The next prime is 145435506521. The reversal of 145435506515 is 515605534541.

It is a cyclic number.

It is not a de Polignac number, because 145435506515 - 2² = 145435506511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145435506511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1050194 + ... + 1180583.

It is an arithmetic number, because the mean of its divisors is an integer number (6324255630).

Almost surely, 2^145435506515 is an apocalyptic number.

145435506515 is a deficient number, since it is larger than the sum of its proper divisors (56940673645).

145435506515 is a wasteful number, since it uses less digits than its factorization.

145435506515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230871.

The product of its (nonzero) digits is 900000, while the sum is 44.

The spelling of 145435506515 in words is "one hundred forty-five billion, four hundred thirty-five million, five hundred six thousand, five hundred fifteen".