1251471460 has 12 divisors (see below), whose sum is σ = 2628090108. Its totient is φ = 500588576.

The previous prime is 1251471449. The next prime is 1251471503. The reversal of 1251471460 is 641741521.

It can be written as a sum of positive squares in 2 ways, for example, as 298391076 + 953080384 = 17274^2 + 30872^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31286767 + ... + 31286806.

It is an arithmetic number, because the mean of its divisors is an integer number (219007509).

Almost surely, 2^1251471460 is an apocalyptic number.

1251471460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1251471460 is an abundant number, since it is smaller than the sum of its proper divisors (1376618648).

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

1251471460 is a wasteful number, since it uses less digits than its factorization.

1251471460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62573582 (or 62573580 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 1251471460 is about 35376.1425257192. The cubic root of 1251471460 is about 1077.6398678617.

The spelling of 1251471460 in words is "one billion, two hundred fifty-one million, four hundred seventy-one thousand, four hundred sixty".