145157243 has 8 divisors (see below), whose sum is σ = 180975360. Its totient is φ = 113109480.

The previous prime is 145157231. The next prime is 145157263. The reversal of 145157243 is 342751541.

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

It is not a de Polignac number, because 145157243 - 2⁴ = 145157227 is a prime.

It is a super-2 number, since 2×145157243² = 42141250390722098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145157213) 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, 942503 + ... + 942656.

It is an arithmetic number, because the mean of its divisors is an integer number (22621920).

Almost surely, 2^145157243 is an apocalyptic number.

145157243 is a deficient number, since it is larger than the sum of its proper divisors (35818117).

145157243 is a wasteful number, since it uses less digits than its factorization.

145157243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1885177.

The product of its digits is 16800, while the sum is 32.

The square root of 145157243 is about 12048.1219698341. The cubic root of 145157243 is about 525.5486243721.

The spelling of 145157243 in words is "one hundred forty-five million, one hundred fifty-seven thousand, two hundred forty-three".