125690 has 8 divisors (see below), whose sum is σ = 226260. Its totient is φ = 50272.

The previous prime is 125687. The next prime is 125693. The reversal of 125690 is 96521.

It is an interprime number because it is at equal distance from previous prime (125687) and next prime (125693).

It can be written as a sum of positive squares in 2 ways, for example, as 116281 + 9409 = 341^2 + 97^2 .

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

It is a super-2 number, since 2×125690² = 31595952200, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125693) 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, 6275 + ... + 6294.

2¹²⁵⁶⁹⁰ is an apocalyptic number.

125690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125690 is a deficient number, since it is larger than the sum of its proper divisors (100570).

125690 is a wasteful number, since it uses less digits than its factorization.

125690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12576.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 125690 is about 354.5278550410. The cubic root of 125690 is about 50.0918312372.

The spelling of 125690 in words is "one hundred twenty-five thousand, six hundred ninety".