1161420352 has 14 divisors (see below), whose sum is σ = 2304693638. Its totient is φ = 580710144.

The previous prime is 1161420341. The next prime is 1161420367. The reversal of 1161420352 is 2530241611.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 964972096 + 196448256 = 31064^2 + 14016^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9073533 + ... + 9073660.

Almost surely, 2^1161420352 is an apocalyptic number.

It is an amenable number.

1161420352 is a deficient number, since it is larger than the sum of its proper divisors (1143273286).

1161420352 is an equidigital number, since it uses as much as digits as its factorization.

1161420352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18147205 (or 18147195 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1161420352 is about 34079.6178382329. The cubic root of 1161420352 is about 1051.1462469435.

Adding to 1161420352 its reverse (2530241611), we get a palindrome (3691661963).

The spelling of 1161420352 in words is "one billion, one hundred sixty-one million, four hundred twenty thousand, three hundred fifty-two".