1320651146 has 8 divisors (see below), whose sum is σ = 1986495840. Its totient is φ = 658485868.

The previous prime is 1320651121. The next prime is 1320651149. The reversal of 1320651146 is 6411560231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1320651146² = 3488238898862226632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1320651149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 918956 + ... + 920391.

It is an arithmetic number, because the mean of its divisors is an integer number (248311980).

Almost surely, 2^1320651146 is an apocalyptic number.

1320651146 is a deficient number, since it is larger than the sum of its proper divisors (665844694).

1320651146 is a wasteful number, since it uses less digits than its factorization.

1320651146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839708.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1320651146 is about 36340.7642462291. The cubic root of 1320651146 is about 1097.1416550703.

The spelling of 1320651146 in words is "one billion, three hundred twenty million, six hundred fifty-one thousand, one hundred forty-six".