147136949 has 2 divisors, whose sum is σ = 147136950. Its totient is φ = 147136948.

The previous prime is 147136933. The next prime is 147136991. The reversal of 147136949 is 949631741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147136900 + 49 = 12130^2 + 7^2 .

It is a cyclic number.

It is not a de Polignac number, because 147136949 - 2⁴ = 147136933 is a prime.

It is a super-2 number, since 2×147136949² = 43298563522057202, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147136999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73568474 + 73568475.

It is an arithmetic number, because the mean of its divisors is an integer number (73568475).

Almost surely, 2^147136949 is an apocalyptic number.

It is an amenable number.

147136949 is a deficient number, since it is larger than the sum of its proper divisors (1).

147136949 is an equidigital number, since it uses as much as digits as its factorization.

147136949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 44.

The square root of 147136949 is about 12130.0020197855. The cubic root of 147136949 is about 527.9270505373.

It can be divided in two parts, 1471369 and 49, that multiplied together give a square (72097081 = 8491²).

The spelling of 147136949 in words is "one hundred forty-seven million, one hundred thirty-six thousand, nine hundred forty-nine".