147031949 has 2 divisors, whose sum is σ = 147031950. Its totient is φ = 147031948.

The previous prime is 147031919. The next prime is 147031961. The reversal of 147031949 is 949130741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130074025 + 16957924 = 11405^2 + 4118^2 .

It is a cyclic number.

It is not a de Polignac number, because 147031949 - 2⁸ = 147031693 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147031909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73515974 + 73515975.

It is an arithmetic number, because the mean of its divisors is an integer number (73515975).

Almost surely, 2^147031949 is an apocalyptic number.

It is an amenable number.

147031949 is a deficient number, since it is larger than the sum of its proper divisors (1).

147031949 is an equidigital number, since it uses as much as digits as its factorization.

147031949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 147031949 is about 12125.6731359541. The cubic root of 147031949 is about 527.8014407300.

The spelling of 147031949 in words is "one hundred forty-seven million, thirty-one thousand, nine hundred forty-nine".