131229079 has 8 divisors (see below), whose sum is σ = 132161040. Its totient is φ = 130300800.

The previous prime is 131229071. The next prime is 131229097. The reversal of 131229079 is 970922131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131229079 - 2³ = 131229071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131229071) 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, 117777 + ... + 118885.

It is an arithmetic number, because the mean of its divisors is an integer number (16520130).

Almost surely, 2^131229079 is an apocalyptic number.

131229079 is a deficient number, since it is larger than the sum of its proper divisors (931961).

131229079 is a wasteful number, since it uses less digits than its factorization.

131229079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 131229079 is about 11455.5261337051. The cubic root of 131229079 is about 508.1711750321.

It can be divided in two parts, 13122 and 9079, that added together give a square (22201 = 149²).

The spelling of 131229079 in words is "one hundred thirty-one million, two hundred twenty-nine thousand, seventy-nine".