124195081 has 8 divisors (see below), whose sum is σ = 136035720. Its totient is φ = 112858368.

The previous prime is 124195073. The next prime is 124195087. The reversal of 124195081 is 180591421.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 68558400 + 55636681 = 8280^2 + 7459^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 124195081 - 2³ = 124195073 is a prime.

It is a super-2 number, since 2×124195081² = 30848836289193122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124195087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125466 + ... + 126451.

It is an arithmetic number, because the mean of its divisors is an integer number (17004465).

Almost surely, 2^124195081 is an apocalyptic number.

It is an amenable number.

124195081 is a deficient number, since it is larger than the sum of its proper divisors (11840639).

124195081 is a wasteful number, since it uses less digits than its factorization.

124195081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251963.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 124195081 is about 11144.2846787041. The cubic root of 124195081 is about 498.9244627649.

The spelling of 124195081 in words is "one hundred twenty-four million, one hundred ninety-five thousand, eighty-one".