146031742 has 4 divisors (see below), whose sum is σ = 219047616. Its totient is φ = 73015870.

The previous prime is 146031727. The next prime is 146031749. The reversal of 146031742 is 247130641.

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

It is a self number, because there is not a number n which added to its sum of digits gives 146031742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146031749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36507934 + ... + 36507937.

It is an arithmetic number, because the mean of its divisors is an integer number (54761904).

Almost surely, 2^146031742 is an apocalyptic number.

146031742 is a deficient number, since it is larger than the sum of its proper divisors (73015874).

146031742 is an equidigital number, since it uses as much as digits as its factorization.

146031742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73015873.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 146031742 is about 12084.3593955162. The cubic root of 146031742 is about 526.6019002947.

The spelling of 146031742 in words is "one hundred forty-six million, thirty-one thousand, seven hundred forty-two".