146142890 has 32 divisors (see below), whose sum is σ = 275616000. Its totient is φ = 55718208.

The previous prime is 146142817. The next prime is 146142907. The reversal of 146142890 is 98241641.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 146142890.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19721 + ... + 26099.

It is an arithmetic number, because the mean of its divisors is an integer number (8613000).

Almost surely, 2^146142890 is an apocalyptic number.

146142890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

146142890 is a deficient number, since it is larger than the sum of its proper divisors (129473110).

146142890 is a wasteful number, since it uses less digits than its factorization.

146142890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6494.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 146142890 is about 12088.9573578535. The cubic root of 146142890 is about 526.7354692111.

The spelling of 146142890 in words is "one hundred forty-six million, one hundred forty-two thousand, eight hundred ninety".