147913961 has 4 divisors (see below), whose sum is σ = 159291972. Its totient is φ = 136535952.

The previous prime is 147913933. The next prime is 147913963. The reversal of 147913961 is 169319741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 169319741 = 89 ⋅1902469.

It can be written as a sum of positive squares in 2 ways, for example, as 28558336 + 119355625 = 5344^2 + 10925^2 .

It is a cyclic number.

It is not a de Polignac number, because 147913961 - 2²² = 143719657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147913963) 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, 5688986 + ... + 5689011.

It is an arithmetic number, because the mean of its divisors is an integer number (39822993).

Almost surely, 2^147913961 is an apocalyptic number.

It is an amenable number.

147913961 is a deficient number, since it is larger than the sum of its proper divisors (11378011).

147913961 is a wasteful number, since it uses less digits than its factorization.

147913961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11378010.

The product of its digits is 40824, while the sum is 41.

The square root of 147913961 is about 12161.9883653949. The cubic root of 147913961 is about 528.8547252545.

The spelling of 147913961 in words is "one hundred forty-seven million, nine hundred thirteen thousand, nine hundred sixty-one".