145871743 has 4 divisors (see below), whose sum is σ = 146921320. Its totient is φ = 144822168.

The previous prime is 145871717. The next prime is 145871749. The reversal of 145871743 is 347178541.

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: 347178541 = 467 ⋅743423.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145871743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145871696 and 145871705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145871749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 524580 + ... + 524857.

It is an arithmetic number, because the mean of its divisors is an integer number (36730330).

Almost surely, 2^145871743 is an apocalyptic number.

145871743 is a deficient number, since it is larger than the sum of its proper divisors (1049577).

145871743 is a wasteful number, since it uses less digits than its factorization.

145871743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049576.

The product of its digits is 94080, while the sum is 40.

The square root of 145871743 is about 12077.7374950775. The cubic root of 145871743 is about 526.4095070371.

The spelling of 145871743 in words is "one hundred forty-five million, eight hundred seventy-one thousand, seven hundred forty-three".