146216465 has 8 divisors (see below), whose sum is σ = 175611240. Its totient is φ = 116872192.

The previous prime is 146216449. The next prime is 146216467. The reversal of 146216465 is 564612641.

It is a Cunningham number, because it is equal to 12092²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 49056016 + 97160449 = 7004^2 + 9857^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 146216465 - 2⁴ = 146216449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (146216467) 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, 5930 + ... + 18099.

It is an arithmetic number, because the mean of its divisors is an integer number (21951405).

Almost surely, 2^146216465 is an apocalyptic number.

It is an amenable number.

146216465 is a deficient number, since it is larger than the sum of its proper divisors (29394775).

146216465 is a wasteful number, since it uses less digits than its factorization.

146216465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25251.

The product of its digits is 34560, while the sum is 35.

The square root of 146216465 is about 12092.0000413497. Note that the first 4 decimals coincide. The cubic root of 146216465 is about 526.8238486056.

The spelling of 146216465 in words is "one hundred forty-six million, two hundred sixteen thousand, four hundred sixty-five".