145814743 has 4 divisors (see below), whose sum is σ = 149755720. Its totient is φ = 141873768.

The previous prime is 145814723. The next prime is 145814771. The reversal of 145814743 is 347418541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 347418541 = 373 ⋅931417.

It is a cyclic number.

It is not a de Polignac number, because 145814743 - 2²⁵ = 112260311 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 3940939 = 145814743 / (1 + 4 + 5 + 8 + 1 + 4 + 7 + 4 + 3).

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145814723) 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, 1970433 + ... + 1970506.

It is an arithmetic number, because the mean of its divisors is an integer number (37438930).

Almost surely, 2^145814743 is an apocalyptic number.

145814743 is a deficient number, since it is larger than the sum of its proper divisors (3940977).

145814743 is an equidigital number, since it uses as much as digits as its factorization.

145814743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3940976.

The product of its digits is 53760, while the sum is 37.

The square root of 145814743 is about 12075.3775510333. The cubic root of 145814743 is about 526.3409325246.

The spelling of 145814743 in words is "one hundred forty-five million, eight hundred fourteen thousand, seven hundred forty-three".