231770449 has 4 divisors (see below), whose sum is σ = 233158464. Its totient is φ = 230382436.

The previous prime is 231770447. The next prime is 231770501. The reversal of 231770449 is 944077132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231770449 - 2¹ = 231770447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231770443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 693757 + ... + 694090.

It is an arithmetic number, because the mean of its divisors is an integer number (58289616).

Almost surely, 2^231770449 is an apocalyptic number.

It is an amenable number.

231770449 is a deficient number, since it is larger than the sum of its proper divisors (1388015).

231770449 is a wasteful number, since it uses less digits than its factorization.

231770449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388014.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 231770449 is about 15224.0089661035. The cubic root of 231770449 is about 614.2606392376.

The spelling of 231770449 in words is "two hundred thirty-one million, seven hundred seventy thousand, four hundred forty-nine".