1251015132 has 24 divisors (see below), whose sum is σ = 2929814272. Its totient is φ = 415465200.

The previous prime is 1251015109. The next prime is 1251015133. The reversal of 1251015132 is 2315101521.

1251015132 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1251015099 and 1251015108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251015133) 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, 189094 + ... + 195597.

Almost surely, 2^1251015132 is an apocalyptic number.

1251015132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1251015132 is an abundant number, since it is smaller than the sum of its proper divisors (1678799140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1251015132 is a wasteful number, since it uses less digits than its factorization.

1251015132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384969 (or 384967 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 1251015132 is about 35369.6922802560. The cubic root of 1251015132 is about 1077.5088708597.

Adding to 1251015132 its reverse (2315101521), we get a palindrome (3566116653).

The spelling of 1251015132 in words is "one billion, two hundred fifty-one million, fifteen thousand, one hundred thirty-two".