214754721958145 has 4 divisors (see below), whose sum is σ = 257705666349780. Its totient is φ = 171803777566512.

The previous prime is 214754721958103. The next prime is 214754721958163. The reversal of 214754721958145 is 541859127457412.

It is a Cunningham number, because it is equal to 14654512²+1.

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 77311713973264 + 137443007984881 = 8792708^2 + 11723609^2 .

It is a cyclic number.

It is not a de Polignac number, because 214754721958145 - 2³⁶ = 214686002481409 is a prime.

It is a super-2 number, since 2×214754721958145² (a number of 29 digits) contains 22 as substring.

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, 21475472195810 + ... + 21475472195819.

It is an arithmetic number, because the mean of its divisors is an integer number (64426416587445).

Almost surely, 2^{214754721958145} is an apocalyptic number.

It is an amenable number.

214754721958145 is a deficient number, since it is larger than the sum of its proper divisors (42950944391635).

214754721958145 is an equidigital number, since it uses as much as digits as its factorization.

214754721958145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42950944391634.

The product of its digits is 112896000, while the sum is 65.

The spelling of 214754721958145 in words is "two hundred fourteen trillion, seven hundred fifty-four billion, seven hundred twenty-one million, nine hundred fifty-eight thousand, one hundred forty-five".