738121 has 2 divisors, whose sum is σ = 738122. Its totient is φ = 738120.

The previous prime is 738109. The next prime is 738151. The reversal of 738121 is 121837.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 622521 + 115600 = 789^2 + 340^2 .

It is a cyclic number.

It is not a de Polignac number, because 738121 - 2¹⁷ = 607049 is a prime.

It is a super-2 number, since 2×738121² = 1089645221282, which contains 22 as substring.

738121 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 738092 and 738101.

It is not a weakly prime, because it can be changed into another prime (738151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 369060 + 369061.

It is an arithmetic number, because the mean of its divisors is an integer number (369061).

2⁷³⁸¹²¹ is an apocalyptic number.

It is an amenable number.

738121 is a deficient number, since it is larger than the sum of its proper divisors (1).

738121 is an equidigital number, since it uses as much as digits as its factorization.

738121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 336, while the sum is 22.

The square root of 738121 is about 859.1396859650. The cubic root of 738121 is about 90.3737951691.

Adding to 738121 its reverse (121837), we get a palindrome (859958).

It can be divided in two parts, 738 and 121, that multiplied together give a palindrome (89298).

The spelling of 738121 in words is "seven hundred thirty-eight thousand, one hundred twenty-one".