1140663061 has 8 divisors (see below), whose sum is σ = 1192164120. Its totient is φ = 1089973248.

The previous prime is 1140663053. The next prime is 1140663077. The reversal of 1140663061 is 1603660411.

It can be written as a sum of positive squares in 4 ways, for example, as 57002500 + 1083660561 = 7550^2 + 32919^2 .

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 1140663061 - 2³ = 1140663053 is a prime.

It is a super-2 number, since 2×1140663061² = 2602224437459779442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140663031) 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, 199936 + ... + 205561.

It is an arithmetic number, because the mean of its divisors is an integer number (149020515).

Almost surely, 2^1140663061 is an apocalyptic number.

It is an amenable number.

1140663061 is a deficient number, since it is larger than the sum of its proper divisors (51501059).

1140663061 is an equidigital number, since it uses as much as digits as its factorization.

1140663061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405623.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1140663061 is about 33773.7036908895. The cubic root of 1140663061 is about 1044.8464205061.

The spelling of 1140663061 in words is "one billion, one hundred forty million, six hundred sixty-three thousand, sixty-one".