145703458 has 8 divisors (see below), whose sum is σ = 218758428. Its totient is φ = 72783984.

The previous prime is 145703423. The next prime is 145703471. The reversal of 145703458 is 854307541.

It can be written as a sum of positive squares in 2 ways, for example, as 145515969 + 187489 = 12063^2 + 433^2 .

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

It is an unprimeable number.

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, 31141 + ... + 35512.

Almost surely, 2^145703458 is an apocalyptic number.

145703458 is a deficient number, since it is larger than the sum of its proper divisors (73054970).

145703458 is a wasteful number, since it uses less digits than its factorization.

145703458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67748.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 145703458 is about 12070.7687410537. The cubic root of 145703458 is about 526.2069982898.

The spelling of 145703458 in words is "one hundred forty-five million, seven hundred three thousand, four hundred fifty-eight".