147642949 has 2 divisors, whose sum is σ = 147642950. Its totient is φ = 147642948.

The previous prime is 147642931. The next prime is 147642991. The reversal of 147642949 is 949246741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147622500 + 20449 = 12150^2 + 143^2 .

It is a cyclic number.

It is not a de Polignac number, because 147642949 - 2⁵ = 147642917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 147642899 and 147642908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147642049) 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, 73821474 + 73821475.

It is an arithmetic number, because the mean of its divisors is an integer number (73821475).

Almost surely, 2^147642949 is an apocalyptic number.

It is an amenable number.

147642949 is a deficient number, since it is larger than the sum of its proper divisors (1).

147642949 is an equidigital number, since it uses as much as digits as its factorization.

147642949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 46.

The square root of 147642949 is about 12150.8414934934. The cubic root of 147642949 is about 528.5315337624.

The spelling of 147642949 in words is "one hundred forty-seven million, six hundred forty-two thousand, nine hundred forty-nine".