1251946248 has 64 divisors (see below), whose sum is σ = 3579707520. Its totient is φ = 357427200.

The previous prime is 1251946243. The next prime is 1251946261. The reversal of 1251946248 is 8426491521.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (1251946243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347818 + ... + 351398.

It is an arithmetic number, because the mean of its divisors is an integer number (55932930).

Almost surely, 2^1251946248 is an apocalyptic number.

It is an amenable number.

1251946248 is an abundant number, since it is smaller than the sum of its proper divisors (2327761272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1251946248 is a wasteful number, since it uses less digits than its factorization.

1251946248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5678 (or 5674 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 1251946248 is about 35382.8524570872. The cubic root of 1251946248 is about 1077.7761303345.

The spelling of 1251946248 in words is "one billion, two hundred fifty-one million, nine hundred forty-six thousand, two hundred forty-eight".