125511045 has 32 divisors (see below), whose sum is σ = 224429184. Its totient is φ = 59366400.

The previous prime is 125510999. The next prime is 125511047. The reversal of 125511045 is 540115521.

It is not a de Polignac number, because 125511045 - 2¹¹ = 125508997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125511047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2512 + ... + 16041.

It is an arithmetic number, because the mean of its divisors is an integer number (7013412).

Almost surely, 2^125511045 is an apocalyptic number.

125511045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125511045 is a deficient number, since it is larger than the sum of its proper divisors (98918139).

125511045 is a wasteful number, since it uses less digits than its factorization.

125511045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18613.

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 125511045 is about 11203.1712028336. The cubic root of 125511045 is about 500.6804668430.

Adding to 125511045 its reverse (540115521), we get a palindrome (665626566).

The spelling of 125511045 in words is "one hundred twenty-five million, five hundred eleven thousand, forty-five".