147788961 has 16 divisors (see below), whose sum is σ = 205900800. Its totient is φ = 94113360.

The previous prime is 147788947. The next prime is 147789029. The reversal of 147788961 is 169887741.

It is not a de Polignac number, because 147788961 - 2⁷ = 147788833 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (147788561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95766 + ... + 97296.

It is an arithmetic number, because the mean of its divisors is an integer number (12868800).

Almost surely, 2^147788961 is an apocalyptic number.

It is an amenable number.

147788961 is a deficient number, since it is larger than the sum of its proper divisors (58111839).

147788961 is a wasteful number, since it uses less digits than its factorization.

147788961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2956.

The product of its digits is 677376, while the sum is 51.

The square root of 147788961 is about 12156.8483168953. The cubic root of 147788961 is about 528.7057073819.

The spelling of 147788961 in words is "one hundred forty-seven million, seven hundred eighty-eight thousand, nine hundred sixty-one".