145015943 has 4 divisors (see below), whose sum is σ = 151321008. Its totient is φ = 138710880.

The previous prime is 145015919. The next prime is 145015963. The reversal of 145015943 is 349510541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145015943 - 2²⁰ = 143967367 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 (145015903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3152498 + ... + 3152543.

It is an arithmetic number, because the mean of its divisors is an integer number (37830252).

Almost surely, 2^145015943 is an apocalyptic number.

145015943 is a deficient number, since it is larger than the sum of its proper divisors (6305065).

145015943 is an equidigital number, since it uses as much as digits as its factorization.

145015943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6305064.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 145015943 is about 12042.2565576390. The cubic root of 145015943 is about 525.3780412451.

The spelling of 145015943 in words is "one hundred forty-five million, fifteen thousand, nine hundred forty-three".