2065151405 has 4 divisors (see below), whose sum is σ = 2478181692. Its totient is φ = 1652121120.

The previous prime is 2065151399. The next prime is 2065151443. The reversal of 2065151405 is 5041515602.

It is a happy number.

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 708997129 + 1356154276 = 26627^2 + 36826^2 .

It is not a de Polignac number, because 2065151405 - 2¹² = 2065147309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206515136 + ... + 206515145.

It is an arithmetic number, because the mean of its divisors is an integer number (619545423).

Almost surely, 2^2065151405 is an apocalyptic number.

It is an amenable number.

2065151405 is a deficient number, since it is larger than the sum of its proper divisors (413030287).

2065151405 is an equidigital number, since it uses as much as digits as its factorization.

2065151405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413030286.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 2065151405 is about 45443.9369443273. The cubic root of 2065151405 is about 1273.4560637453.

The spelling of 2065151405 in words is "two billion, sixty-five million, one hundred fifty-one thousand, four hundred five".