147380778 has 24 divisors (see below), whose sum is σ = 320035716. Its totient is φ = 49017600.

The previous prime is 147380699. The next prime is 147380791. The reversal of 147380778 is 877083741.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 143352729 + 4028049 = 11973^2 + 2007^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 583 + ... + 17178.

Almost surely, 2^147380778 is an apocalyptic number.

147380778 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

147380778 is an abundant number, since it is smaller than the sum of its proper divisors (172654938).

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

147380778 is a wasteful number, since it uses less digits than its factorization.

147380778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18230 (or 18227 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 45.

The square root of 147380778 is about 12140.0485172012. The cubic root of 147380778 is about 528.2185089050.

The spelling of 147380778 in words is "one hundred forty-seven million, three hundred eighty thousand, seven hundred seventy-eight".