147231709 has 8 divisors (see below), whose sum is σ = 148438080. Its totient is φ = 146029536.

The previous prime is 147231701. The next prime is 147231737. The reversal of 147231709 is 907132741.

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 147231709 - 2³ = 147231701 is a prime.

It is a super-2 number, since 2×147231709² = 43354352270121362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147231701) 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, 122817 + ... + 124009.

It is an arithmetic number, because the mean of its divisors is an integer number (18554760).

Almost surely, 2^147231709 is an apocalyptic number.

It is an amenable number.

147231709 is a deficient number, since it is larger than the sum of its proper divisors (1206371).

147231709 is a wasteful number, since it uses less digits than its factorization.

147231709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2099.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 147231709 is about 12133.9074085803. The cubic root of 147231709 is about 528.0403591070.

The spelling of 147231709 in words is "one hundred forty-seven million, two hundred thirty-one thousand, seven hundred nine".