1157454458 has 16 divisors (see below), whose sum is σ = 1745079720. Its totient is φ = 575769600.

The previous prime is 1157454451. The next prime is 1157454479. The reversal of 1157454458 is 8544547511.

It can be written as a sum of positive squares in 4 ways, for example, as 1001279449 + 156175009 = 31643^2 + 12497^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1157454451) 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, 342698 + ... + 346058.

Almost surely, 2^1157454458 is an apocalyptic number.

1157454458 is a deficient number, since it is larger than the sum of its proper divisors (587625262).

1157454458 is a wasteful number, since it uses less digits than its factorization.

1157454458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4193.

The product of its digits is 448000, while the sum is 44.

The square root of 1157454458 is about 34021.3823646248. The cubic root of 1157454458 is about 1049.9484352606.

The spelling of 1157454458 in words is "one billion, one hundred fifty-seven million, four hundred fifty-four thousand, four hundred fifty-eight".