1157641046 has 4 divisors (see below), whose sum is σ = 1736461572. Its totient is φ = 578820522.

The previous prime is 1157641033. The next prime is 1157641073. The reversal of 1157641046 is 6401467511.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 1157640997 and 1157641015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 289410260 + ... + 289410263.

It is an arithmetic number, because the mean of its divisors is an integer number (434115393).

Almost surely, 2^1157641046 is an apocalyptic number.

1157641046 is a deficient number, since it is larger than the sum of its proper divisors (578820526).

1157641046 is an equidigital number, since it uses as much as digits as its factorization.

1157641046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578820525.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 1157641046 is about 34024.1244707340. The cubic root of 1157641046 is about 1050.0048513759.

The spelling of 1157641046 in words is "one billion, one hundred fifty-seven million, six hundred forty-one thousand, forty-six".