125691954 has 32 divisors (see below), whose sum is σ = 265493760. Its totient is φ = 39560400.

The previous prime is 125691953. The next prime is 125691961. The reversal of 125691954 is 459196521.

It is not an unprimeable number, because it can be changed into a prime (125691953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36069 + ... + 39399.

It is an arithmetic number, because the mean of its divisors is an integer number (8296680).

Almost surely, 2^125691954 is an apocalyptic number.

125691954 is an abundant number, since it is smaller than the sum of its proper divisors (139801806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125691954 is a wasteful number, since it uses less digits than its factorization.

125691954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3686.

The product of its digits is 97200, while the sum is 42.

The square root of 125691954 is about 11211.2423040446. The cubic root of 125691954 is about 500.9209081484.

The spelling of 125691954 in words is "one hundred twenty-five million, six hundred ninety-one thousand, nine hundred fifty-four".