231020074 has 8 divisors (see below), whose sum is σ = 348445188. Its totient is φ = 114871680.

The previous prime is 231020071. The next prime is 231020077. The reversal of 231020074 is 470020132.

It is an interprime number because it is at equal distance from previous prime (231020071) and next prime (231020077).

It can be written as a sum of positive squares in 2 ways, for example, as 197205849 + 33814225 = 14043^2 + 5815^2 .

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

It is not an unprimeable number, because it can be changed into a prime (231020071) 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 in 3 ways as a sum of consecutive naturals, for example, 318727 + ... + 319450.

Almost surely, 2^231020074 is an apocalyptic number.

231020074 is a deficient number, since it is larger than the sum of its proper divisors (117425114).

231020074 is a wasteful number, since it uses less digits than its factorization.

231020074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638360.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 231020074 is about 15199.3445253406. The cubic root of 231020074 is about 613.5970168854.

The spelling of 231020074 in words is "two hundred thirty-one million, twenty thousand, seventy-four".