147920278 has 12 divisors (see below), whose sum is σ = 242144748. Its totient is φ = 67210560.

The previous prime is 147920273. The next prime is 147920309. The reversal of 147920278 is 872029741.

It is a self number, because there is not a number n which added to its sum of digits gives 147920278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147920273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55750 + ... + 58342.

It is an arithmetic number, because the mean of its divisors is an integer number (20178729).

Almost surely, 2^147920278 is an apocalyptic number.

147920278 is a deficient number, since it is larger than the sum of its proper divisors (94224470).

147920278 is an frugal number, since it uses more digits than its factorization.

147920278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5199 (or 2606 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 147920278 is about 12162.2480652222. The cubic root of 147920278 is about 528.8622537927.

The spelling of 147920278 in words is "one hundred forty-seven million, nine hundred twenty thousand, two hundred seventy-eight".