161403130 has 32 divisors (see below), whose sum is σ = 333889920. Its totient is φ = 55028160.

The previous prime is 161403127. The next prime is 161403131. The reversal of 161403130 is 31304161.

It is a junction number, because it is equal to n+sod(n) for n = 161403098 and 161403107.

It is not an unprimeable number, because it can be changed into a prime (161403131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6301 + ... + 19039.

It is an arithmetic number, because the mean of its divisors is an integer number (10434060).

Almost surely, 2^161403130 is an apocalyptic number.

161403130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161403130 is an abundant number, since it is smaller than the sum of its proper divisors (172486790).

161403130 is a wasteful number, since it uses less digits than its factorization.

161403130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12934.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 161403130 is about 12704.4531562756. The cubic root of 161403130 is about 544.4658571645.

Adding to 161403130 its reverse (31304161), we get a palindrome (192707291).

The spelling of 161403130 in words is "one hundred sixty-one million, four hundred three thousand, one hundred thirty".