125251390 has 16 divisors (see below), whose sum is σ = 245948400. Its totient is φ = 45545920.

The previous prime is 125251369. The next prime is 125251411. The reversal of 125251390 is 93152521.

It is an interprime number because it is at equal distance from previous prime (125251369) and next prime (125251411).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569215 + ... + 569434.

It is an arithmetic number, because the mean of its divisors is an integer number (15371775).

Almost surely, 2^125251390 is an apocalyptic number.

125251390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125251390 is a deficient number, since it is larger than the sum of its proper divisors (120697010).

125251390 is a wasteful number, since it uses less digits than its factorization.

125251390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138667.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 125251390 is about 11191.5767432476. The cubic root of 125251390 is about 500.3349622172.

The spelling of 125251390 in words is "one hundred twenty-five million, two hundred fifty-one thousand, three hundred ninety".