146342305421 has 4 divisors (see below), whose sum is σ = 157599405852. Its totient is φ = 135085204992.

The previous prime is 146342305303. The next prime is 146342305427. The reversal of 146342305421 is 124503243641.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23474529796 + 122867775625 = 153214^2 + 350525^2 .

It is a cyclic number.

It is not a de Polignac number, because 146342305421 - 2³⁴ = 129162436237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146342305427) 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, 5628550196 + ... + 5628550221.

It is an arithmetic number, because the mean of its divisors is an integer number (39399851463).

Almost surely, 2^146342305421 is an apocalyptic number.

It is an amenable number.

146342305421 is a deficient number, since it is larger than the sum of its proper divisors (11257100431).

146342305421 is a wasteful number, since it uses less digits than its factorization.

146342305421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11257100430.

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 146342305421 in words is "one hundred forty-six billion, three hundred forty-two million, three hundred five thousand, four hundred twenty-one".