146178730 has 16 divisors (see below), whose sum is σ = 264305664. Its totient is φ = 58208400.

The previous prime is 146178727. The next prime is 146178737. The reversal of 146178730 is 37871641.

It is a super-2 number, since 2×146178730² = 42736442208825800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 146178730.

It is not an unprimeable number, because it can be changed into a prime (146178737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30546 + ... + 35005.

It is an arithmetic number, because the mean of its divisors is an integer number (16519104).

Almost surely, 2^146178730 is an apocalyptic number.

146178730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

146178730 is a deficient number, since it is larger than the sum of its proper divisors (118126934).

146178730 is a wasteful number, since it uses less digits than its factorization.

146178730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65781.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 146178730 is about 12090.4396115278. The cubic root of 146178730 is about 526.7785244616.

The spelling of 146178730 in words is "one hundred forty-six million, one hundred seventy-eight thousand, seven hundred thirty".