1115493201 has 21 divisors (see below), whose sum is σ = 1673827851. Its totient is φ = 743060952.

The previous prime is 1115493179. The next prime is 1115493221. The reversal of 1115493201 is 1023945111.

It is a happy number.

The square root of 1115493201 is 33399.

It is a perfect power (a square), and thus also a powerful number.

1115493201 is a `hidden beast` number, since 111 + 549 + 3 + 2 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 842450625 + 273042576 = 29025^2 + 16524^2 .

It is not a de Polignac number, because 1115493201 - 2¹³ = 1115485009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1115493221) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 901155 + ... + 902391.

Almost surely, 2^1115493201 is an apocalyptic number.

1115493201 is the 33399-th square number.

1115493201 is the 16700-th centered octagonal number.

It is an amenable number.

1115493201 is a deficient number, since it is larger than the sum of its proper divisors (558334650).

1115493201 is an frugal number, since it uses more digits than its factorization.

1115493201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2492 (or 1240 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The cubic root of 1115493201 is about 1037.1039997590.

The spelling of 1115493201 in words is "one billion, one hundred fifteen million, four hundred ninety-three thousand, two hundred one".