125319956 has 6 divisors (see below), whose sum is σ = 219309930. Its totient is φ = 62659976.

The previous prime is 125319913. The next prime is 125319959. The reversal of 125319956 is 659913521.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 122855056 + 2464900 = 11084^2 + 1570^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125319959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15664991 + ... + 15664998.

It is an arithmetic number, because the mean of its divisors is an integer number (36551655).

Almost surely, 2^125319956 is an apocalyptic number.

It is an amenable number.

125319956 is a deficient number, since it is larger than the sum of its proper divisors (93989974).

125319956 is a wasteful number, since it uses less digits than its factorization.

125319956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31329993 (or 31329991 counting only the distinct ones).

The product of its digits is 72900, while the sum is 41.

The square root of 125319956 is about 11194.6396100991. The cubic root of 125319956 is about 500.4262445279.

The spelling of 125319956 in words is "one hundred twenty-five million, three hundred nineteen thousand, nine hundred fifty-six".