145758874 has 4 divisors (see below), whose sum is σ = 218638314. Its totient is φ = 72879436.

The previous prime is 145758839. The next prime is 145758883. The reversal of 145758874 is 478857541.

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

It can be written as a sum of positive squares in only one way, i.e., 125283249 + 20475625 = 11193^2 + 4525^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 as a sum of consecutive naturals, namely, 36439717 + ... + 36439720.

Almost surely, 2^145758874 is an apocalyptic number.

145758874 is a deficient number, since it is larger than the sum of its proper divisors (72879440).

145758874 is an equidigital number, since it uses as much as digits as its factorization.

145758874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72879439.

The product of its digits is 1254400, while the sum is 49.

The square root of 145758874 is about 12073.0639855838. The cubic root of 145758874 is about 526.2737013302.

The spelling of 145758874 in words is "one hundred forty-five million, seven hundred fifty-eight thousand, eight hundred seventy-four".