125291290 has 16 divisors (see below), whose sum is σ = 226180512. Its totient is φ = 49970704.

The previous prime is 125291267. The next prime is 125291291. The reversal of 125291290 is 92192521.

It is not an unprimeable number, because it can be changed into a prime (125291291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14584 + ... + 21523.

It is an arithmetic number, because the mean of its divisors is an integer number (14136282).

Almost surely, 2^125291290 is an apocalyptic number.

125291290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125291290 is a deficient number, since it is larger than the sum of its proper divisors (100889222).

125291290 is a wasteful number, since it uses less digits than its factorization.

125291290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36461.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 125291290 is about 11193.3591919495. The cubic root of 125291290 is about 500.3880853682.

The spelling of 125291290 in words is "one hundred twenty-five million, two hundred ninety-one thousand, two hundred ninety".