1374432281 has 2 divisors, whose sum is σ = 1374432282. Its totient is φ = 1374432280.

The previous prime is 1374432277. The next prime is 1374432287. The reversal of 1374432281 is 1822344731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1335244681 + 39187600 = 36541^2 + 6260^2 .

It is a cyclic number.

It is not a de Polignac number, because 1374432281 - 2² = 1374432277 is a prime.

It is a super-2 number, since 2×1374432281² = 3778128190109725922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1374432287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687216140 + 687216141.

It is an arithmetic number, because the mean of its divisors is an integer number (687216141).

Almost surely, 2^1374432281 is an apocalyptic number.

It is an amenable number.

1374432281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1374432281 is an equidigital number, since it uses as much as digits as its factorization.

1374432281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 35.

The square root of 1374432281 is about 37073.3365237066. The cubic root of 1374432281 is about 1111.8369823074.

The spelling of 1374432281 in words is "one billion, three hundred seventy-four million, four hundred thirty-two thousand, two hundred eighty-one".