131727770 has 32 divisors (see below), whose sum is σ = 246904848. Its totient is φ = 50554368.

The previous prime is 131727769. The next prime is 131727787. The reversal of 131727770 is 77727131.

It can be written as a sum of positive squares in 8 ways, for example, as 75672601 + 56055169 = 8699^2 + 7487^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 131727770.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24572 + ... + 29448.

Almost surely, 2^131727770 is an apocalyptic number.

131727770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131727770 is a deficient number, since it is larger than the sum of its proper divisors (115177078).

131727770 is a wasteful number, since it uses less digits than its factorization.

131727770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4994.

The product of its (nonzero) digits is 14406, while the sum is 35.

The square root of 131727770 is about 11477.2718883888. The cubic root of 131727770 is about 508.8140712992.

The spelling of 131727770 in words is "one hundred thirty-one million, seven hundred twenty-seven thousand, seven hundred seventy".