1161064621 has 8 divisors (see below), whose sum is σ = 1172615840. Its totient is φ = 1149529968.

The previous prime is 1161064603. The next prime is 1161064649. The reversal of 1161064621 is 1264601611.

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 1161064621 - 2⁷ = 1161064493 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1161064621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161064601) 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, 174070 + ... + 180616.

It is an arithmetic number, because the mean of its divisors is an integer number (146576980).

Almost surely, 2^1161064621 is an apocalyptic number.

It is an amenable number.

1161064621 is a deficient number, since it is larger than the sum of its proper divisors (11551219).

1161064621 is a wasteful number, since it uses less digits than its factorization.

1161064621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8283.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1161064621 is about 34074.3983219073. The cubic root of 1161064621 is about 1051.0389175894.

The spelling of 1161064621 in words is "one billion, one hundred sixty-one million, sixty-four thousand, six hundred twenty-one".