125143461 has 20 divisors (see below), whose sum is σ = 188215500. Its totient is φ = 82861056.

The previous prime is 125143457. The next prime is 125143489. The reversal of 125143461 is 164341521.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10439361 + 114704100 = 3231^2 + 10710^2 .

It is not a de Polignac number, because 125143461 - 2² = 125143457 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125143411) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6885 + ... + 17253.

It is an arithmetic number, because the mean of its divisors is an integer number (9410775).

Almost surely, 2^125143461 is an apocalyptic number.

It is an amenable number.

125143461 is a deficient number, since it is larger than the sum of its proper divisors (63072039).

125143461 is a wasteful number, since it uses less digits than its factorization.

125143461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10530 (or 10521 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 125143461 is about 11186.7538186911. The cubic root of 125143461 is about 500.1912082029.

Adding to 125143461 its reverse (164341521), we get a palindrome (289484982).

The spelling of 125143461 in words is "one hundred twenty-five million, one hundred forty-three thousand, four hundred sixty-one".