145052545 has 16 divisors (see below), whose sum is σ = 194306112. Its totient is φ = 103037760.

The previous prime is 145052507. The next prime is 145052561. The reversal of 145052545 is 545250541.

It is not a de Polignac number, because 145052545 - 2¹³ = 145044353 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28302 + ... + 33031.

It is an arithmetic number, because the mean of its divisors is an integer number (12144132).

Almost surely, 2^145052545 is an apocalyptic number.

It is an amenable number.

145052545 is a deficient number, since it is larger than the sum of its proper divisors (49253567).

145052545 is a wasteful number, since it uses less digits than its factorization.

145052545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61392.

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 145052545 is about 12043.7761935366. The cubic root of 145052545 is about 525.4222393037.

The spelling of 145052545 in words is "one hundred forty-five million, fifty-two thousand, five hundred forty-five".