1251030002 has 4 divisors (see below), whose sum is σ = 1876545006. Its totient is φ = 625515000.

The previous prime is 1251029993. The next prime is 1251030023. The reversal of 1251030002 is 2000301521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2000301521 = 2393 ⋅835897.

It can be written as a sum of positive squares in only one way, i.e., 997233241 + 253796761 = 31579^2 + 15931^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312757499 + ... + 312757502.

Almost surely, 2^1251030002 is an apocalyptic number.

1251030002 is a deficient number, since it is larger than the sum of its proper divisors (625515004).

1251030002 is an equidigital number, since it uses as much as digits as its factorization.

1251030002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625515003.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 1251030002 is about 35369.9024878498. The cubic root of 1251030002 is about 1077.5131400576.

Adding to 1251030002 its reverse (2000301521), we get a palindrome (3251331523).

The spelling of 1251030002 in words is "one billion, two hundred fifty-one million, thirty thousand, two".