1251354132 has 72 divisors (see below), whose sum is σ = 3691973376. Its totient is φ = 349919424.

The previous prime is 1251354121. The next prime is 1251354133. The reversal of 1251354132 is 2314531521.

1251354132 is a `hidden beast` number, since 12 + 513 + 5 + 4 + 132 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1251354096 and 1251354105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251354133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40983 + ... + 64670.

It is an arithmetic number, because the mean of its divisors is an integer number (51277408).

Almost surely, 2^1251354132 is an apocalyptic number.

1251354132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1251354132 is an abundant number, since it is smaller than the sum of its proper divisors (2440619244).

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

1251354132 is a wasteful number, since it uses less digits than its factorization.

1251354132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105717 (or 105712 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 1251354132 is about 35374.4841941194. The cubic root of 1251354132 is about 1077.6061898312.

Adding to 1251354132 its reverse (2314531521), we get a palindrome (3565885653).

The spelling of 1251354132 in words is "one billion, two hundred fifty-one million, three hundred fifty-four thousand, one hundred thirty-two".