146530402978 has 8 divisors (see below), whose sum is σ = 229351935168. Its totient is φ = 70079757924.

The previous prime is 146530402961. The next prime is 146530403017. The reversal of 146530402978 is 879204035641.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1592721726 + ... + 1592721817.

It is an arithmetic number, because the mean of its divisors is an integer number (28668991896).

It is a 1-persistent number, because it is pandigital, but 2⋅146530402978 = 293060805956 is not.

Almost surely, 2^146530402978 is an apocalyptic number.

146530402978 is a deficient number, since it is larger than the sum of its proper divisors (82821532190).

146530402978 is a wasteful number, since it uses less digits than its factorization.

146530402978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3185443568.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 146530402978 in words is "one hundred forty-six billion, five hundred thirty million, four hundred two thousand, nine hundred seventy-eight".