147051661 has 4 divisors (see below), whose sum is σ = 147088000. Its totient is φ = 147015324.

The previous prime is 147051629. The next prime is 147051689. The reversal of 147051661 is 166150741.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 147051661 - 2⁵ = 147051629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147051691) 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 in 3 ways as a sum of consecutive naturals, for example, 11211 + ... + 20488.

It is an arithmetic number, because the mean of its divisors is an integer number (36772000).

Almost surely, 2^147051661 is an apocalyptic number.

It is an amenable number.

147051661 is a deficient number, since it is larger than the sum of its proper divisors (36339).

147051661 is an equidigital number, since it uses as much as digits as its factorization.

147051661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36338.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 147051661 is about 12126.4859295676. The cubic root of 147051661 is about 527.8250264363.

The spelling of 147051661 in words is "one hundred forty-seven million, fifty-one thousand, six hundred sixty-one".