1257134334 has 16 divisors (see below), whose sum is σ = 2515126800. Its totient is φ = 418901760.

The previous prime is 1257134327. The next prime is 1257134339. The reversal of 1257134334 is 4334317521.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1257134295 and 1257134304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1257134339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15859 + ... + 52590.

It is an arithmetic number, because the mean of its divisors is an integer number (157195425).

Almost surely, 2^1257134334 is an apocalyptic number.

1257134334 is an abundant number, since it is smaller than the sum of its proper divisors (1257992466).

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

1257134334 is a wasteful number, since it uses less digits than its factorization.

1257134334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71515.

The product of its digits is 30240, while the sum is 33.

The square root of 1257134334 is about 35456.0902243888. The cubic root of 1257134334 is about 1079.2628526032.

The spelling of 1257134334 in words is "one billion, two hundred fifty-seven million, one hundred thirty-four thousand, three hundred thirty-four".