146995778 has 4 divisors (see below), whose sum is σ = 220493670. Its totient is φ = 73497888.

The previous prime is 146995763. The next prime is 146995813. The reversal of 146995778 is 877599641.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 140730769 + 6265009 = 11863^2 + 2503^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36748943 + ... + 36748946.

Almost surely, 2^146995778 is an apocalyptic number.

146995778 is a deficient number, since it is larger than the sum of its proper divisors (73497892).

146995778 is an equidigital number, since it uses as much as digits as its factorization.

146995778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73497891.

The product of its digits is 3810240, while the sum is 56.

The square root of 146995778 is about 12124.1815393865. The cubic root of 146995778 is about 527.7581560974.

The spelling of 146995778 in words is "one hundred forty-six million, nine hundred ninety-five thousand, seven hundred seventy-eight".