124690 has 16 divisors (see below), whose sum is σ = 231192. Its totient is φ = 48384.

The previous prime is 124679. The next prime is 124693. The reversal of 124690 is 96421.

It can be written as a sum of positive squares in 4 ways, for example, as 109561 + 15129 = 331^2 + 123^2 .

It is a super-2 number, since 2×124690² = 31095192200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (124693) 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, 202 + ... + 538.

2¹²⁴⁶⁹⁰ is an apocalyptic number.

124690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

124690 is a deficient number, since it is larger than the sum of its proper divisors (106502).

124690 is a wasteful number, since it uses less digits than its factorization.

124690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 124690 is about 353.1147122395. The cubic root of 124690 is about 49.9586324506.

It can be divided in two parts, 12 and 4690, that multiplied together give a triangular number (56280 = T₃₃₅).

The spelling of 124690 in words is "one hundred twenty-four thousand, six hundred ninety".