145303263 has 24 divisors (see below), whose sum is σ = 244397088. Its totient is φ = 81461952.

The previous prime is 145303261. The next prime is 145303283. The reversal of 145303263 is 362303541.

It is a happy number.

It is not a de Polignac number, because 145303263 - 2¹ = 145303261 is a prime.

It is a super-2 number, since 2×145303263² = 42226076476894338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145303261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18420 + ... + 25097.

It is an arithmetic number, because the mean of its divisors is an integer number (10183212).

Almost surely, 2^145303263 is an apocalyptic number.

145303263 is a deficient number, since it is larger than the sum of its proper divisors (99093825).

145303263 is a wasteful number, since it uses less digits than its factorization.

145303263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43583 (or 43580 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 145303263 is about 12054.1803122402. The cubic root of 145303263 is about 525.7247894068.

The spelling of 145303263 in words is "one hundred forty-five million, three hundred three thousand, two hundred sixty-three".