125378966 has 4 divisors (see below), whose sum is σ = 188068452. Its totient is φ = 62689482.

The previous prime is 125378951. The next prime is 125378983. The reversal of 125378966 is 669873521.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 125378966.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31344740 + ... + 31344743.

It is an arithmetic number, because the mean of its divisors is an integer number (47017113).

Almost surely, 2^125378966 is an apocalyptic number.

125378966 is a deficient number, since it is larger than the sum of its proper divisors (62689486).

125378966 is an equidigital number, since it uses as much as digits as its factorization.

125378966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62689485.

The product of its digits is 544320, while the sum is 47.

The square root of 125378966 is about 11197.2749363405. The cubic root of 125378966 is about 500.5047782264.

The spelling of 125378966 in words is "one hundred twenty-five million, three hundred seventy-eight thousand, nine hundred sixty-six".