147646949 has 4 divisors (see below), whose sum is σ = 148462860. Its totient is φ = 146831040.

The previous prime is 147646943. The next prime is 147646979. The reversal of 147646949 is 949646741.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 801025 + 146845924 = 895^2 + 12118^2 .

It is a cyclic number.

It is not a de Polignac number, because 147646949 - 2¹² = 147642853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 147646897 and 147646906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147646943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407684 + ... + 408045.

It is an arithmetic number, because the mean of its divisors is an integer number (37115715).

Almost surely, 2^147646949 is an apocalyptic number.

It is an amenable number.

147646949 is a deficient number, since it is larger than the sum of its proper divisors (815911).

147646949 is an equidigital number, since it uses as much as digits as its factorization.

147646949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815910.

The product of its digits is 1306368, while the sum is 50.

The square root of 147646949 is about 12151.0060900322. The cubic root of 147646949 is about 528.5363067797.

The spelling of 147646949 in words is "one hundred forty-seven million, six hundred forty-six thousand, nine hundred forty-nine".