145791874 has 8 divisors (see below), whose sum is σ = 226228860. Its totient is φ = 70382256.

The previous prime is 145791869. The next prime is 145791889. The reversal of 145791874 is 478197541.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 144120025 + 1671849 = 12005^2 + 1293^2 .

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, 1256769 + ... + 1256884.

Almost surely, 2^145791874 is an apocalyptic number.

145791874 is a deficient number, since it is larger than the sum of its proper divisors (80436986).

145791874 is a wasteful number, since it uses less digits than its factorization.

145791874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513684.

The product of its digits is 282240, while the sum is 46.

The square root of 145791874 is about 12074.4305869884. The cubic root of 145791874 is about 526.3134146851.

The spelling of 145791874 in words is "one hundred forty-five million, seven hundred ninety-one thousand, eight hundred seventy-four".