125440011 has 12 divisors (see below), whose sum is σ = 181916280. Its totient is φ = 83292000.

The previous prime is 125440009. The next prime is 125440069. The reversal of 125440011 is 110044521.

125440011 is a `hidden beast` number, since 1 + 254 + 400 + 11 = 666.

It is not a de Polignac number, because 125440011 - 2¹ = 125440009 is a prime.

It is a super-3 number, since 3×125440011³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (125440001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25506 + ... + 30023.

It is an arithmetic number, because the mean of its divisors is an integer number (15159690).

Almost surely, 2^125440011 is an apocalyptic number.

125440011 is a deficient number, since it is larger than the sum of its proper divisors (56476269).

125440011 is a wasteful number, since it uses less digits than its factorization.

125440011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55786 (or 55783 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 125440011 is about 11200.0004910714. Note that the first 3 decimals coincide. The cubic root of 125440011 is about 500.5859942864.

Adding to 125440011 its reverse (110044521), we get a palindrome (235484532).

The spelling of 125440011 in words is "one hundred twenty-five million, four hundred forty thousand, eleven".