125533213 has 8 divisors (see below), whose sum is σ = 135655128. Its totient is φ = 115477824.

The previous prime is 125533201. The next prime is 125533217. The reversal of 125533213 is 312335521.

It can be written as a sum of positive squares in 4 ways, for example, as 63154809 + 62378404 = 7947^2 + 7898^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125533213 is a prime.

It is a super-2 number, since 2×125533213² = 31517175132206738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125533217) 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, 12670 + ... + 20287.

It is an arithmetic number, because the mean of its divisors is an integer number (16956891).

Almost surely, 2^125533213 is an apocalyptic number.

125533213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

125533213 is a deficient number, since it is larger than the sum of its proper divisors (10121915).

125533213 is a wasteful number, since it uses less digits than its factorization.

125533213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33263.

The product of its digits is 2700, while the sum is 25.

The square root of 125533213 is about 11204.1605218776. The cubic root of 125533213 is about 500.7099421538.

Adding to 125533213 its reverse (312335521), we get a palindrome (437868734).

The spelling of 125533213 in words is "one hundred twenty-five million, five hundred thirty-three thousand, two hundred thirteen".