125167749 has 32 divisors (see below), whose sum is σ = 194033664. Its totient is φ = 70299840.

The previous prime is 125167747. The next prime is 125167789. The reversal of 125167749 is 947761521.

It is a happy number.

It is not a de Polignac number, because 125167749 - 2¹ = 125167747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125167749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125167747) 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, 475792 + ... + 476054.

It is an arithmetic number, because the mean of its divisors is an integer number (6063552).

Almost surely, 2^125167749 is an apocalyptic number.

It is an amenable number.

125167749 is a deficient number, since it is larger than the sum of its proper divisors (68865915).

125167749 is a wasteful number, since it uses less digits than its factorization.

125167749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577.

The product of its digits is 105840, while the sum is 42.

The square root of 125167749 is about 11187.8393356358. The cubic root of 125167749 is about 500.2235653555.

The spelling of 125167749 in words is "one hundred twenty-five million, one hundred sixty-seven thousand, seven hundred forty-nine".