2151463 has 2 divisors, whose sum is σ = 2151464. Its totient is φ = 2151462.

The previous prime is 2151451. The next prime is 2151467. The reversal of 2151463 is 3641512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2151463 - 2¹⁷ = 2020391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2151467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075731 + 1075732.

It is an arithmetic number, because the mean of its divisors is an integer number (1075732).

2^2151463 is an apocalyptic number.

2151463 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151463 is an equidigital number, since it uses as much as digits as its factorization.

2151463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 22.

The square root of 2151463 is about 1466.7866238823. The cubic root of 2151463 is about 129.0955564653.

Adding to 2151463 its reverse (3641512), we get a palindrome (5792975).

The spelling of 2151463 in words is "two million, one hundred fifty-one thousand, four hundred sixty-three".