146421658 has 8 divisors (see below), whose sum is σ = 219718080. Its totient is φ = 73182300.

The previous prime is 146421641. The next prime is 146421659. The reversal of 146421658 is 856124641.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (146421659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7138 + ... + 18541.

It is an arithmetic number, because the mean of its divisors is an integer number (27464760).

Almost surely, 2^146421658 is an apocalyptic number.

146421658 is a deficient number, since it is larger than the sum of its proper divisors (73296422).

146421658 is a wasteful number, since it uses less digits than its factorization.

146421658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28532.

The product of its digits is 46080, while the sum is 37.

The square root of 146421658 is about 12100.4817259479. The cubic root of 146421658 is about 527.0701729797.

The spelling of 146421658 in words is "one hundred forty-six million, four hundred twenty-one thousand, six hundred fifty-eight".