147144919 has 2 divisors, whose sum is σ = 147144920. Its totient is φ = 147144918.

The previous prime is 147144913. The next prime is 147144929. The reversal of 147144919 is 919441741.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 147144919 - 2⁷ = 147144791 is a prime.

It is a super-2 number, since 2×147144919² = 43303254375033122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147144913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73572459 + 73572460.

It is an arithmetic number, because the mean of its divisors is an integer number (73572460).

Almost surely, 2^147144919 is an apocalyptic number.

147144919 is a deficient number, since it is larger than the sum of its proper divisors (1).

147144919 is an equidigital number, since it uses as much as digits as its factorization.

147144919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 40.

The square root of 147144919 is about 12130.3305396020. The cubic root of 147144919 is about 527.9365824793.

The spelling of 147144919 in words is "one hundred forty-seven million, one hundred forty-four thousand, nine hundred nineteen".