1157563 has 8 divisors (see below), whose sum is σ = 1290240. Its totient is φ = 1029480.

The previous prime is 1157557. The next prime is 1157579. The reversal of 1157563 is 3657511.

1157563 = 42³ + 43³ + ... + 52³.

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

It is a cyclic number.

It is not a de Polignac number, because 1157563 - 2⁵ = 1157531 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1157503) 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, 603 + ... + 1636.

It is an arithmetic number, because the mean of its divisors is an integer number (161280).

2^1157563 is an apocalyptic number.

1157563 is a deficient number, since it is larger than the sum of its proper divisors (132677).

1157563 is a wasteful number, since it uses less digits than its factorization.

1157563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297.

The product of its digits is 3150, while the sum is 28.

The square root of 1157563 is about 1075.9010177521. The cubic root of 1157563 is about 104.9981254389.

The spelling of 1157563 in words is "one million, one hundred fifty-seven thousand, five hundred sixty-three".