1251148148 has 12 divisors (see below), whose sum is σ = 2190458592. Its totient is φ = 625302840.

The previous prime is 1251148147. The next prime is 1251148187. The reversal of 1251148148 is 8418411521.

It is a happy number.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251148147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57248 + ... + 76023.

It is an arithmetic number, because the mean of its divisors is an integer number (182538216).

Almost surely, 2^1251148148 is an apocalyptic number.

It is an amenable number.

1251148148 is a deficient number, since it is larger than the sum of its proper divisors (939310444).

1251148148 is a wasteful number, since it uses less digits than its factorization.

1251148148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135622 (or 135620 counting only the distinct ones).

The product of its digits is 10240, while the sum is 35.

The square root of 1251148148 is about 35371.5725972143. The cubic root of 1251148148 is about 1077.5470587379.

Adding to 1251148148 its reverse (8418411521), we get a palindrome (9669559669).

The spelling of 1251148148 in words is "one billion, two hundred fifty-one million, one hundred forty-eight thousand, one hundred forty-eight".