145045615 has 32 divisors (see below), whose sum is σ = 216530496. Its totient is φ = 91637760.

The previous prime is 145045561. The next prime is 145045643. The reversal of 145045615 is 516540541.

145045615 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145045615 - 2¹³ = 145037423 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6189 + ... + 18121.

It is an arithmetic number, because the mean of its divisors is an integer number (6766578).

Almost surely, 2^145045615 is an apocalyptic number.

145045615 is a deficient number, since it is larger than the sum of its proper divisors (71484881).

145045615 is a wasteful number, since it uses less digits than its factorization.

145045615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11979.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 145045615 is about 12043.4884896362. The cubic root of 145045615 is about 525.4138716828.

The spelling of 145045615 in words is "one hundred forty-five million, forty-five thousand, six hundred fifteen".