745274 has 4 divisors (see below), whose sum is σ = 1117914. Its totient is φ = 372636.

The previous prime is 745273. The next prime is 745301. The reversal of 745274 is 472547.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 472547 = 521 ⋅907.

It can be written as a sum of positive squares in only one way, i.e., 573049 + 172225 = 757^2 + 415^2 .

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

It is not an unprimeable number, because it can be changed into a prime (745273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186317 + ... + 186320.

2⁷⁴⁵²⁷⁴ is an apocalyptic number.

745274 is a deficient number, since it is larger than the sum of its proper divisors (372640).

745274 is a wasteful number, since it uses less digits than its factorization.

745274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372639.

The product of its digits is 7840, while the sum is 29.

The square root of 745274 is about 863.2925344285. The cubic root of 745274 is about 90.6647893450.

The spelling of 745274 in words is "seven hundred forty-five thousand, two hundred seventy-four".