231150001 has 4 divisors (see below), whose sum is σ = 232622452. Its totient is φ = 229677552.

The previous prime is 231149993. The next prime is 231150011. The reversal of 231150001 is 100051132.

231150001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 108472225 + 122677776 = 10415^2 + 11076^2 .

It is a cyclic number.

It is not a de Polignac number, because 231150001 - 2³ = 231149993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231150011) 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, 735990 + ... + 736303.

It is an arithmetic number, because the mean of its divisors is an integer number (58155613).

Almost surely, 2^231150001 is an apocalyptic number.

It is an amenable number.

231150001 is a deficient number, since it is larger than the sum of its proper divisors (1472451).

231150001 is a wasteful number, since it uses less digits than its factorization.

231150001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472450.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 231150001 is about 15203.6180233522. The cubic root of 231150001 is about 613.7120254751.

The spelling of 231150001 in words is "two hundred thirty-one million, one hundred fifty thousand, one".