125343261 has 64 divisors (see below), whose sum is σ = 212336640. Its totient is φ = 72610560.

The previous prime is 125343241. The next prime is 125343277. The reversal of 125343261 is 162343521.

It is not a de Polignac number, because 125343261 - 2¹⁰ = 125342237 is a prime.

It is a super-2 number, since 2×125343261² = 31421866156228242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125343241) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 327076 + ... + 327458.

It is an arithmetic number, because the mean of its divisors is an integer number (3317760).

Almost surely, 2^125343261 is an apocalyptic number.

It is an amenable number.

125343261 is a deficient number, since it is larger than the sum of its proper divisors (86993379).

125343261 is a wasteful number, since it uses less digits than its factorization.

125343261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463 (or 457 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 125343261 is about 11195.6804616781. The cubic root of 125343261 is about 500.4572630269.

Adding to 125343261 its reverse (162343521), we get a palindrome (287686782).

The spelling of 125343261 in words is "one hundred twenty-five million, three hundred forty-three thousand, two hundred sixty-one".