1391518130 has 8 divisors (see below), whose sum is σ = 2504732652. Its totient is φ = 556607248.

The previous prime is 1391518129. The next prime is 1391518159. The reversal of 1391518130 is 318151931.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1386594169 + 4923961 = 37237^2 + 2219^2 .

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

It is a super-2 number, since 2×1391518130² = 3872645412237393800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69575897 + ... + 69575916.

Almost surely, 2^1391518130 is an apocalyptic number.

1391518130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1391518130 is a deficient number, since it is larger than the sum of its proper divisors (1113214522).

1391518130 is a wasteful number, since it uses less digits than its factorization.

1391518130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139151820.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 1391518130 is about 37303.0579175488. The cubic root of 1391518130 is about 1116.4251799283.

The spelling of 1391518130 in words is "one billion, three hundred ninety-one million, five hundred eighteen thousand, one hundred thirty".