1252674721 has 8 divisors (see below), whose sum is σ = 1266330240. Its totient is φ = 1239064512.

The previous prime is 1252674719. The next prime is 1252674727. The reversal of 1252674721 is 1274762521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1252674721 - 2¹ = 1252674719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1252674727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45820 + ... + 67858.

It is an arithmetic number, because the mean of its divisors is an integer number (158291280).

Almost surely, 2^1252674721 is an apocalyptic number.

It is an amenable number.

1252674721 is a deficient number, since it is larger than the sum of its proper divisors (13655519).

1252674721 is a wasteful number, since it uses less digits than its factorization.

1252674721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22655.

The product of its digits is 47040, while the sum is 37.

The square root of 1252674721 is about 35393.1451131430. The cubic root of 1252674721 is about 1077.9851325392.

The spelling of 1252674721 in words is "one billion, two hundred fifty-two million, six hundred seventy-four thousand, seven hundred twenty-one".