1157127390 has 64 divisors (see below), whose sum is σ = 3185233920. Its totient is φ = 298611360.

The previous prime is 1157127331. The next prime is 1157127397. The reversal of 1157127390 is 937217511.

1157127390 is a `hidden beast` number, since 11 + 571 + 2 + 73 + 9 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157127397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60754 + ... + 77493.

It is an arithmetic number, because the mean of its divisors is an integer number (49769280).

Almost surely, 2^1157127390 is an apocalyptic number.

1157127390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1157127390 is an abundant number, since it is smaller than the sum of its proper divisors (2028106530).

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

1157127390 is a wasteful number, since it uses less digits than its factorization.

1157127390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138294 (or 138288 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 36.

The square root of 1157127390 is about 34016.5752244402. The cubic root of 1157127390 is about 1049.8495294582.

The spelling of 1157127390 in words is "one billion, one hundred fifty-seven million, one hundred twenty-seven thousand, three hundred ninety".