231141077 has 4 divisors (see below), whose sum is σ = 231735660. Its totient is φ = 230546496.

The previous prime is 231141047. The next prime is 231141083. The reversal of 231141077 is 770141132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38514436 + 192626641 = 6206^2 + 13879^2 .

It is a cyclic number.

It is not a de Polignac number, because 231141077 - 2¹⁰ = 231140053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231141037) 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, 296708 + ... + 297485.

It is an arithmetic number, because the mean of its divisors is an integer number (57933915).

Almost surely, 2^231141077 is an apocalyptic number.

It is an amenable number.

231141077 is a deficient number, since it is larger than the sum of its proper divisors (594583).

231141077 is an equidigital number, since it uses as much as digits as its factorization.

231141077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594582.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 231141077 is about 15203.3245377450. The cubic root of 231141077 is about 613.7041275206.

The spelling of 231141077 in words is "two hundred thirty-one million, one hundred forty-one thousand, seventy-seven".