146978486 has 4 divisors (see below), whose sum is σ = 220467732. Its totient is φ = 73489242.

The previous prime is 146978479. The next prime is 146978501. The reversal of 146978486 is 684879641.

146978486 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 684879641 = 2957 ⋅231613.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36744620 + ... + 36744623.

It is an arithmetic number, because the mean of its divisors is an integer number (55116933).

Almost surely, 2^146978486 is an apocalyptic number.

146978486 is a deficient number, since it is larger than the sum of its proper divisors (73489246).

146978486 is an equidigital number, since it uses as much as digits as its factorization.

146978486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73489245.

The product of its digits is 2322432, while the sum is 53.

The square root of 146978486 is about 12123.4683981112. The cubic root of 146978486 is about 527.7374608275.

The spelling of 146978486 in words is "one hundred forty-six million, nine hundred seventy-eight thousand, four hundred eighty-six".