131077730 has 32 divisors (see below), whose sum is σ = 271385856. Its totient is φ = 44650944.

The previous prime is 131077729. The next prime is 131077733. The reversal of 131077730 is 37770131.

It is a happy number.

131077730 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131077693 and 131077702.

It is not an unprimeable number, because it can be changed into a prime (131077733) 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, 5027 + ... + 16953.

It is an arithmetic number, because the mean of its divisors is an integer number (8480808).

Almost surely, 2^131077730 is an apocalyptic number.

131077730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131077730 is an abundant number, since it is smaller than the sum of its proper divisors (140308126).

131077730 is a wasteful number, since it uses less digits than its factorization.

131077730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12098.

The product of its (nonzero) digits is 3087, while the sum is 29.

The square root of 131077730 is about 11448.9182895154. The cubic root of 131077730 is about 507.9757387095.

The spelling of 131077730 in words is "one hundred thirty-one million, seventy-seven thousand, seven hundred thirty".