1391623130 has 16 divisors (see below), whose sum is σ = 2508723144. Its totient is φ = 555804480.

The previous prime is 1391623127. The next prime is 1391623151. The reversal of 1391623130 is 313261931.

It can be written as a sum of positive squares in 4 ways, for example, as 961434049 + 430189081 = 31007^2 + 20741^2 .

It is a super-2 number, since 2×1391623130² = 3873229871901993800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1391623093 and 1391623102.

It is an unprimeable number.

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, 98657 + ... + 111876.

Almost surely, 2^1391623130 is an apocalyptic number.

1391623130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1391623130 is a deficient number, since it is larger than the sum of its proper divisors (1117100014).

1391623130 is a wasteful number, since it uses less digits than its factorization.

1391623130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211201.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 1391623130 is about 37304.4652823224. The cubic root of 1391623130 is about 1116.4532599782.

The spelling of 1391623130 in words is "one billion, three hundred ninety-one million, six hundred twenty-three thousand, one hundred thirty".