125281216 has 14 divisors (see below), whose sum is σ = 248605040. Its totient is φ = 62640576.

The previous prime is 125281201. The next prime is 125281217. The reversal of 125281216 is 612182521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125281217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 978696 + ... + 978823.

Almost surely, 2^125281216 is an apocalyptic number.

125281216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

125281216 is a deficient number, since it is larger than the sum of its proper divisors (123323824).

125281216 is an equidigital number, since it uses as much as digits as its factorization.

125281216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1957531 (or 1957521 counting only the distinct ones).

The product of its digits is 1920, while the sum is 28.

The square root of 125281216 is about 11192.9091839432. The cubic root of 125281216 is about 500.3746738356.

The spelling of 125281216 in words is "one hundred twenty-five million, two hundred eighty-one thousand, two hundred sixteen".