174031421 has 2 divisors, whose sum is σ = 174031422. Its totient is φ = 174031420.

The previous prime is 174031411. The next prime is 174031439. The reversal of 174031421 is 124130471.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162052900 + 11978521 = 12730^2 + 3461^2 .

It is a cyclic number.

It is not a de Polignac number, because 174031421 - 2²² = 169837117 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (174031411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87015710 + 87015711.

It is an arithmetic number, because the mean of its divisors is an integer number (87015711).

Almost surely, 2^174031421 is an apocalyptic number.

It is an amenable number.

174031421 is a deficient number, since it is larger than the sum of its proper divisors (1).

174031421 is an equidigital number, since it uses as much as digits as its factorization.

174031421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 174031421 is about 13192.0969144409. The cubic root of 174031421 is about 558.3106197834.

Adding to 174031421 its reverse (124130471), we get a palindrome (298161892).

The spelling of 174031421 in words is "one hundred seventy-four million, thirty-one thousand, four hundred twenty-one".