1251210152 has 16 divisors (see below), whose sum is σ = 2346437940. Its totient is φ = 625493376.

The previous prime is 1251210131. The next prime is 1251210157. The reversal of 1251210152 is 2510121521.

It can be written as a sum of positive squares in 2 ways, for example, as 694533316 + 556676836 = 26354^2 + 23594^2 .

It is not an unprimeable number, because it can be changed into a prime (1251210157) 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, 51938 + ... + 72110.

Almost surely, 2^1251210152 is an apocalyptic number.

It is an amenable number.

1251210152 is a deficient number, since it is larger than the sum of its proper divisors (1095227788).

1251210152 is a wasteful number, since it uses less digits than its factorization.

1251210152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27932 (or 27928 counting only the distinct ones).

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

The square root of 1251210152 is about 35372.4490528999. The cubic root of 1251210152 is about 1077.5648586881.

Adding to 1251210152 its reverse (2510121521), we get a palindrome (3761331673).

The spelling of 1251210152 in words is "one billion, two hundred fifty-one million, two hundred ten thousand, one hundred fifty-two".