147666031 has 2 divisors, whose sum is σ = 147666032. Its totient is φ = 147666030.

The previous prime is 147666019. The next prime is 147666083. The reversal of 147666031 is 130666741.

It is a weak prime.

It is an emirp because it is prime and its reverse (130666741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 147666031 - 2¹⁵ = 147633263 is a prime.

It is a super-2 number, since 2×147666031² = 43610513422585922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147666731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73833015 + 73833016.

It is an arithmetic number, because the mean of its divisors is an integer number (73833016).

Almost surely, 2^147666031 is an apocalyptic number.

147666031 is a deficient number, since it is larger than the sum of its proper divisors (1).

147666031 is an equidigital number, since it uses as much as digits as its factorization.

147666031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 147666031 is about 12151.7912671342. The cubic root of 147666031 is about 528.5590752722.

The spelling of 147666031 in words is "one hundred forty-seven million, six hundred sixty-six thousand, thirty-one".