145134515 has 4 divisors (see below), whose sum is σ = 174161424. Its totient is φ = 116107608.

The previous prime is 145134463. The next prime is 145134551. The reversal of 145134515 is 515431541.

145134515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145134515 - 2²² = 140940211 is a prime.

It is a Duffinian 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, 14513447 + ... + 14513456.

It is an arithmetic number, because the mean of its divisors is an integer number (43540356).

Almost surely, 2^145134515 is an apocalyptic number.

145134515 is a deficient number, since it is larger than the sum of its proper divisors (29026909).

145134515 is an equidigital number, since it uses as much as digits as its factorization.

145134515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29026908.

The product of its digits is 6000, while the sum is 29.

The square root of 145134515 is about 12047.1787153673. The cubic root of 145134515 is about 525.5211936761.

The spelling of 145134515 in words is "one hundred forty-five million, one hundred thirty-four thousand, five hundred fifteen".