231028049 has 8 divisors (see below), whose sum is σ = 277928640. Its totient is φ = 187601616.

The previous prime is 231028043. The next prime is 231028067. The reversal of 231028049 is 940820132.

231028049 = T₁₇₉₇ + T₁₇₉₈ + ... + T₁₉₂₉.

231028049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 231028049 - 2⁴ = 231028033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231028043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 868394 + ... + 868659.

It is an arithmetic number, because the mean of its divisors is an integer number (34741080).

Almost surely, 2^231028049 is an apocalyptic number.

It is an amenable number.

231028049 is a deficient number, since it is larger than the sum of its proper divisors (46900591).

231028049 is a wasteful number, since it uses less digits than its factorization.

231028049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737079.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 231028049 is about 15199.6068699161. The cubic root of 231028049 is about 613.6040774261.

The spelling of 231028049 in words is "two hundred thirty-one million, twenty-eight thousand, forty-nine".