201230977 has 4 divisors (see below), whose sum is σ = 201267136. Its totient is φ = 201194820.

The previous prime is 201230959. The next prime is 201230987. The reversal of 201230977 is 779032102.

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, and also an emirpimes, since its reverse is a distinct semiprime: 779032102 = 2 ⋅389516051.

It is a cyclic number.

It is not a de Polignac number, because 201230977 - 2⁷ = 201230849 is a prime.

It is a super-3 number, since 3×201230977³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201230917) 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, 7773 + ... + 21514.

It is an arithmetic number, because the mean of its divisors is an integer number (50316784).

Almost surely, 2^201230977 is an apocalyptic number.

It is an amenable number.

201230977 is a deficient number, since it is larger than the sum of its proper divisors (36159).

201230977 is an equidigital number, since it uses as much as digits as its factorization.

201230977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36158.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 201230977 is about 14185.5904706149. The cubic root of 201230977 is about 586.0008940102. Note that the first 3 decimals are identical.

The spelling of 201230977 in words is "two hundred one million, two hundred thirty thousand, nine hundred seventy-seven".