145274503 has 8 divisors (see below), whose sum is σ = 167803920. Its totient is φ = 124298880.

The previous prime is 145274497. The next prime is 145274567. The reversal of 145274503 is 305472541.

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

It is a cyclic number.

It is not a de Polignac number, because 145274503 - 2⁹ = 145273991 is a prime.

It is a super-2 number, since 2×145274503² = 42209362443794018, which contains 22 as substring.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145274203) 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, 388248 + ... + 388621.

It is an arithmetic number, because the mean of its divisors is an integer number (20975490).

Almost surely, 2^145274503 is an apocalyptic number.

145274503 is a deficient number, since it is larger than the sum of its proper divisors (22529417).

145274503 is a wasteful number, since it uses less digits than its factorization.

145274503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776897.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 145274503 is about 12052.9873060582. The cubic root of 145274503 is about 525.6901013980.

The spelling of 145274503 in words is "one hundred forty-five million, two hundred seventy-four thousand, five hundred three".