9147161478 has 32 divisors (see below), whose sum is σ = 22516091136. Its totient is φ = 2412438048.

The previous prime is 9147161477. The next prime is 9147161521. The reversal of 9147161478 is 8741617419.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9147161477) 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, 8375976 + ... + 8377067.

It is an arithmetic number, because the mean of its divisors is an integer number (703627848).

Almost surely, 2^9147161478 is an apocalyptic number.

9147161478 is an abundant number, since it is smaller than the sum of its proper divisors (13368929658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9147161478 is a wasteful number, since it uses less digits than its factorization.

9147161478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16753068.

The product of its digits is 338688, while the sum is 48.

The square root of 9147161478 is about 95640.7940054870. The cubic root of 9147161478 is about 2091.3599261123.

The spelling of 9147161478 in words is "nine billion, one hundred forty-seven million, one hundred sixty-one thousand, four hundred seventy-eight".