147444331 has 2 divisors, whose sum is σ = 147444332. Its totient is φ = 147444330.

The previous prime is 147444239. The next prime is 147444337. The reversal of 147444331 is 133444741.

It is a happy number.

147444331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (133444741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 147444331 - 2¹⁷ = 147313259 is a prime.

It is a super-2 number, since 2×147444331² = 43479661488075122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 147444293 and 147444302.

It is not a weakly prime, because it can be changed into another prime (147444337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73722165 + 73722166.

It is an arithmetic number, because the mean of its divisors is an integer number (73722166).

Almost surely, 2^147444331 is an apocalyptic number.

147444331 is a deficient number, since it is larger than the sum of its proper divisors (1).

147444331 is an equidigital number, since it uses as much as digits as its factorization.

147444331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 31.

The square root of 147444331 is about 12142.6657287434. The cubic root of 147444331 is about 528.2944234786.

The spelling of 147444331 in words is "one hundred forty-seven million, four hundred forty-four thousand, three hundred thirty-one".