125297990 has 16 divisors (see below), whose sum is σ = 238803552. Its totient is φ = 47170944.

The previous prime is 125297987. The next prime is 125297993. The reversal of 125297990 is 99792521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (125297987) and next prime (125297993).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125297993) 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, 368354 + ... + 368693.

It is an arithmetic number, because the mean of its divisors is an integer number (14925222).

Almost surely, 2^125297990 is an apocalyptic number.

125297990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125297990 is a deficient number, since it is larger than the sum of its proper divisors (113505562).

125297990 is a wasteful number, since it uses less digits than its factorization.

125297990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737071.

The product of its (nonzero) digits is 102060, while the sum is 44.

The square root of 125297990 is about 11193.6584725460. The cubic root of 125297990 is about 500.3970046911.

The spelling of 125297990 in words is "one hundred twenty-five million, two hundred ninety-seven thousand, nine hundred ninety".