1331357086 has 16 divisors (see below), whose sum is σ = 2036999088. Its totient is φ = 652435200.

The previous prime is 1331357021. The next prime is 1331357087. The reversal of 1331357086 is 6807531331.

It is a happy number.

It is a super-2 number, since 2×1331357086² = 3545023380884822792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331357087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15246 + ... + 53806.

It is an arithmetic number, because the mean of its divisors is an integer number (127312443).

Almost surely, 2^1331357086 is an apocalyptic number.

1331357086 is a deficient number, since it is larger than the sum of its proper divisors (705642002).

1331357086 is a wasteful number, since it uses less digits than its factorization.

1331357086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38907.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 1331357086 is about 36487.7662511697. The cubic root of 1331357086 is about 1100.0983620031.

The spelling of 1331357086 in words is "one billion, three hundred thirty-one million, three hundred fifty-seven thousand, eighty-six".