131669770 has 16 divisors (see below), whose sum is σ = 238462560. Its totient is φ = 52344144.

The previous prime is 131669767. The next prime is 131669771. The reversal of 131669770 is 77966131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (131669771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38760 + ... + 42019.

It is an arithmetic number, because the mean of its divisors is an integer number (14903910).

Almost surely, 2^131669770 is an apocalyptic number.

131669770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131669770 is a deficient number, since it is larger than the sum of its proper divisors (106792790).

131669770 is a wasteful number, since it uses less digits than its factorization.

131669770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80949.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 131669770 is about 11474.7448773382. The cubic root of 131669770 is about 508.7393830527.

The spelling of 131669770 in words is "one hundred thirty-one million, six hundred sixty-nine thousand, seven hundred seventy".