124540890 has 32 divisors (see below), whose sum is σ = 306979200. Its totient is φ = 32313024.

The previous prime is 124540879. The next prime is 124540891. The reversal of 124540890 is 98045421.

It is not an unprimeable number, because it can be changed into a prime (124540891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54990 + ... + 57209.

It is an arithmetic number, because the mean of its divisors is an integer number (9593100).

Almost surely, 2^124540890 is an apocalyptic number.

124540890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

124540890 is an abundant number, since it is smaller than the sum of its proper divisors (182438310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

124540890 is a wasteful number, since it uses less digits than its factorization.

124540890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112246.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 124540890 is about 11159.7889764995. The cubic root of 124540890 is about 499.3871023533.

The spelling of 124540890 in words is "one hundred twenty-four million, five hundred forty thousand, eight hundred ninety".