146421655 has 8 divisors (see below), whose sum is σ = 178586784. Its totient is φ = 115216800.

The previous prime is 146421641. The next prime is 146421659. The reversal of 146421655 is 556124641.

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

It is not a de Polignac number, because 146421655 - 2¹¹ = 146419607 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 146421655.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 239731 + ... + 240340.

It is an arithmetic number, because the mean of its divisors is an integer number (22323348).

Almost surely, 2^146421655 is an apocalyptic number.

146421655 is a deficient number, since it is larger than the sum of its proper divisors (32165129).

146421655 is an equidigital number, since it uses as much as digits as its factorization.

146421655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480137.

The product of its digits is 28800, while the sum is 34.

The square root of 146421655 is about 12100.4816019859. The cubic root of 146421655 is about 527.0701693800.

The spelling of 146421655 in words is "one hundred forty-six million, four hundred twenty-one thousand, six hundred fifty-five".