124001771 has 4 divisors (see below), whose sum is σ = 130528200. Its totient is φ = 117475344.

The previous prime is 124001749. The next prime is 124001807. The reversal of 124001771 is 177100421.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124001771 is a prime.

It is a super-2 number, since 2×124001771² = 30752878422272882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124001711) 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, 3263186 + ... + 3263223.

It is an arithmetic number, because the mean of its divisors is an integer number (32632050).

Almost surely, 2^124001771 is an apocalyptic number.

124001771 is a deficient number, since it is larger than the sum of its proper divisors (6526429).

124001771 is an equidigital number, since it uses as much as digits as its factorization.

124001771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6526428.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 124001771 is about 11135.6082456236. The cubic root of 124001771 is about 498.6654692242.

The spelling of 124001771 in words is "one hundred twenty-four million, one thousand, seven hundred seventy-one".