146634142 has 4 divisors (see below), whose sum is σ = 219951216. Its totient is φ = 73317070.

The previous prime is 146634127. The next prime is 146634143. The reversal of 146634142 is 241436641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241436641 = 157 ⋅1537813.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146634143) by changing a digit.

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 as a sum of consecutive naturals, namely, 36658534 + ... + 36658537.

It is an arithmetic number, because the mean of its divisors is an integer number (54987804).

Almost surely, 2^146634142 is an apocalyptic number.

146634142 is a deficient number, since it is larger than the sum of its proper divisors (73317074).

146634142 is an equidigital number, since it uses as much as digits as its factorization.

146634142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73317073.

The product of its digits is 13824, while the sum is 31.

The square root of 146634142 is about 12109.2585239560. The cubic root of 146634142 is about 527.3250074292.

The spelling of 146634142 in words is "one hundred forty-six million, six hundred thirty-four thousand, one hundred forty-two".