145015503 has 8 divisors (see below), whose sum is σ = 194745600. Its totient is φ = 95981208.

The previous prime is 145015477. The next prime is 145015511. The reversal of 145015503 is 305510541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145015503 - 2⁵ = 145015471 is a prime.

It is a super-2 number, since 2×145015503² = 42058992220686018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145015103) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 173463 + ... + 174296.

It is an arithmetic number, because the mean of its divisors is an integer number (24343200).

Almost surely, 2^145015503 is an apocalyptic number.

145015503 is a deficient number, since it is larger than the sum of its proper divisors (49730097).

145015503 is a wasteful number, since it uses less digits than its factorization.

145015503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347901.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 145015503 is about 12042.2382886239. The cubic root of 145015503 is about 525.3775098861.

The spelling of 145015503 in words is "one hundred forty-five million, fifteen thousand, five hundred three".