146720634 has 16 divisors (see below), whose sum is σ = 306199872. Its totient is φ = 46780448.

The previous prime is 146720569. The next prime is 146720681. The reversal of 146720634 is 436027641.

It is a happy number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 146720595 and 146720604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531459 + ... + 531734.

It is an arithmetic number, because the mean of its divisors is an integer number (19137492).

Almost surely, 2^146720634 is an apocalyptic number.

146720634 is an abundant number, since it is smaller than the sum of its proper divisors (159479238).

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

146720634 is a wasteful number, since it uses less digits than its factorization.

146720634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063221.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 146720634 is about 12112.8293144088. The cubic root of 146720634 is about 527.4286677576.

The spelling of 146720634 in words is "one hundred forty-six million, seven hundred twenty thousand, six hundred thirty-four".