147661077 has 4 divisors (see below), whose sum is σ = 196881440. Its totient is φ = 98440716.

The previous prime is 147661051. The next prime is 147661079. The reversal of 147661077 is 770166741.

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 not a de Polignac number, because 147661077 - 2¹² = 147656981 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 (147661079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24610177 + ... + 24610182.

It is an arithmetic number, because the mean of its divisors is an integer number (49220360).

Almost surely, 2^147661077 is an apocalyptic number.

It is an amenable number.

147661077 is a deficient number, since it is larger than the sum of its proper divisors (49220363).

147661077 is an equidigital number, since it uses as much as digits as its factorization.

147661077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49220362.

The product of its (nonzero) digits is 49392, while the sum is 39.

The square root of 147661077 is about 12151.5874271636. The cubic root of 147661077 is about 528.5531643868.

The spelling of 147661077 in words is "one hundred forty-seven million, six hundred sixty-one thousand, seventy-seven".