124142161 has 24 divisors (see below), whose sum is σ = 150153696. Its totient is φ = 101687040.

The previous prime is 124142159. The next prime is 124142189. The reversal of 124142161 is 161241421.

It is not a de Polignac number, because 124142161 - 2¹ = 124142159 is a prime.

It is a super-2 number, since 2×124142161² = 30822552275499842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (124142131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79161 + ... + 80713.

It is an arithmetic number, because the mean of its divisors is an integer number (6256404).

Almost surely, 2^124142161 is an apocalyptic number.

124142161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

124142161 is a deficient number, since it is larger than the sum of its proper divisors (26011535).

124142161 is a wasteful number, since it uses less digits than its factorization.

124142161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633 (or 1620 counting only the distinct ones).

The product of its digits is 384, while the sum is 22.

The square root of 124142161 is about 11141.9101145181. The cubic root of 124142161 is about 498.8535881553.

Adding to 124142161 its reverse (161241421), we get a palindrome (285383582).

The spelling of 124142161 in words is "one hundred twenty-four million, one hundred forty-two thousand, one hundred sixty-one".