1252941490 has 8 divisors (see below), whose sum is σ = 2255294700. Its totient is φ = 501176592.

The previous prime is 1252941479. The next prime is 1252941511. The reversal of 1252941490 is 941492521.

It can be written as a sum of positive squares in 2 ways, for example, as 1252522881 + 418609 = 35391^2 + 647^2 .

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

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62647065 + ... + 62647084.

Almost surely, 2^1252941490 is an apocalyptic number.

1252941490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1252941490 is a deficient number, since it is larger than the sum of its proper divisors (1002353210).

1252941490 is a wasteful number, since it uses less digits than its factorization.

1252941490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125294156.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 1252941490 is about 35396.9135660159. The cubic root of 1252941490 is about 1078.0616495045.

The spelling of 1252941490 in words is "one billion, two hundred fifty-two million, nine hundred forty-one thousand, four hundred ninety".