145272863 has 8 divisors (see below), whose sum is σ = 147336000. Its totient is φ = 143215488.

The previous prime is 145272839. The next prime is 145272889. The reversal of 145272863 is 368272541.

It is a happy number.

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 145272863 - 2¹⁰ = 145271839 is a prime.

It is a super-2 number, since 2×145272863² = 42208409448433538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145272823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81995 + ... + 83747.

It is an arithmetic number, because the mean of its divisors is an integer number (18417000).

Almost surely, 2^145272863 is an apocalyptic number.

145272863 is a deficient number, since it is larger than the sum of its proper divisors (2063137).

145272863 is a wasteful number, since it uses less digits than its factorization.

145272863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2881.

The product of its digits is 80640, while the sum is 38.

The square root of 145272863 is about 12052.9192729396. The cubic root of 145272863 is about 525.6881232233.

The spelling of 145272863 in words is "one hundred forty-five million, two hundred seventy-two thousand, eight hundred sixty-three".