1251145010 has 16 divisors (see below), whose sum is σ = 2312928216. Its totient is φ = 486931968.

The previous prime is 1251144997. The next prime is 1251145019. The reversal of 1251145010 is 105411521.

It can be written as a sum of positive squares in 4 ways, for example, as 926532721 + 324612289 = 30439^2 + 18017^2 .

It is not an unprimeable number, because it can be changed into a prime (1251145019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1690367 + ... + 1691106.

Almost surely, 2^1251145010 is an apocalyptic number.

1251145010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1251145010 is a deficient number, since it is larger than the sum of its proper divisors (1061783206).

1251145010 is a wasteful number, since it uses less digits than its factorization.

1251145010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3381517.

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 1251145010 is about 35371.5282395319. The cubic root of 1251145010 is about 1077.5461578732.

Adding to 1251145010 its reverse (105411521), we get a palindrome (1356556531).

The spelling of 1251145010 in words is "one billion, two hundred fifty-one million, one hundred forty-five thousand, ten".