1157042361 has 8 divisors (see below), whose sum is σ = 1542905920. Its totient is φ = 771270192.

The previous prime is 1157042329. The next prime is 1157042371. The reversal of 1157042361 is 1632407511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1157042361 - 2⁵ = 1157042329 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1157042371) 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, 16260 + ... + 50778.

It is an arithmetic number, because the mean of its divisors is an integer number (192863240).

Almost surely, 2^1157042361 is an apocalyptic number.

It is an amenable number.

1157042361 is a deficient number, since it is larger than the sum of its proper divisors (385863559).

1157042361 is a wasteful number, since it uses less digits than its factorization.

1157042361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45695.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 1157042361 is about 34015.3253843029. The cubic root of 1157042361 is about 1049.8238135221.

Adding to 1157042361 its reverse (1632407511), we get a palindrome (2789449872).

The spelling of 1157042361 in words is "one billion, one hundred fifty-seven million, forty-two thousand, three hundred sixty-one".