131777330 has 16 divisors (see below), whose sum is σ = 237695040. Its totient is φ = 52600752.

The previous prime is 131777329. The next prime is 131777339. The reversal of 131777330 is 33777131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (131777339) 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, 8660 + ... + 18399.

It is an arithmetic number, because the mean of its divisors is an integer number (14855940).

Almost surely, 2^131777330 is an apocalyptic number.

131777330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131777330 is a deficient number, since it is larger than the sum of its proper divisors (105917710).

131777330 is a wasteful number, since it uses less digits than its factorization.

131777330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27553.

The product of its (nonzero) digits is 9261, while the sum is 32.

The square root of 131777330 is about 11479.4307350147. The cubic root of 131777330 is about 508.8778737498.

The spelling of 131777330 in words is "one hundred thirty-one million, seven hundred seventy-seven thousand, three hundred thirty".