1152261646 has 4 divisors (see below), whose sum is σ = 1728392472. Its totient is φ = 576130822.

The previous prime is 1152261641. The next prime is 1152261647. The reversal of 1152261646 is 6461622511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6461622511 = 8053 ⋅802387.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152261641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 288065410 + ... + 288065413.

It is an arithmetic number, because the mean of its divisors is an integer number (432098118).

Almost surely, 2^1152261646 is an apocalyptic number.

1152261646 is a deficient number, since it is larger than the sum of its proper divisors (576130826).

1152261646 is an equidigital number, since it uses as much as digits as its factorization.

1152261646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576130825.

The product of its digits is 17280, while the sum is 34.

The square root of 1152261646 is about 33944.9796877241. The cubic root of 1152261646 is about 1048.3759158544.

The spelling of 1152261646 in words is "one billion, one hundred fifty-two million, two hundred sixty-one thousand, six hundred forty-six".