145045715 has 16 divisors (see below), whose sum is σ = 183712800. Its totient is φ = 109631232.

The previous prime is 145045673. The next prime is 145045721. The reversal of 145045715 is 517540541.

It is a cyclic number.

It is not a de Polignac number, because 145045715 - 2¹² = 145041619 is a prime.

It is a super-2 number, since 2×145045715² = 42076518879722450, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36989 + ... + 40721.

It is an arithmetic number, because the mean of its divisors is an integer number (11482050).

Almost surely, 2^145045715 is an apocalyptic number.

145045715 is a deficient number, since it is larger than the sum of its proper divisors (38667085).

145045715 is a wasteful number, since it uses less digits than its factorization.

145045715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4166.

The product of its (nonzero) digits is 14000, while the sum is 32.

The square root of 145045715 is about 12043.4926412565. The cubic root of 145045715 is about 525.4139924296.

The spelling of 145045715 in words is "one hundred forty-five million, forty-five thousand, seven hundred fifteen".