145706263 has 4 divisors (see below), whose sum is σ = 146203848. Its totient is φ = 145208680.

The previous prime is 145706221. The next prime is 145706273. The reversal of 145706263 is 362607541.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 362607541 = 1879 ⋅192979.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145706263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145706273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248353 + ... + 248938.

It is an arithmetic number, because the mean of its divisors is an integer number (36550962).

Almost surely, 2^145706263 is an apocalyptic number.

145706263 is a deficient number, since it is larger than the sum of its proper divisors (497585).

145706263 is an equidigital number, since it uses as much as digits as its factorization.

145706263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497584.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 145706263 is about 12070.8849302775. The cubic root of 145706263 is about 526.2103750140.

The spelling of 145706263 in words is "one hundred forty-five million, seven hundred six thousand, two hundred sixty-three".