70401481 has 2 divisors, whose sum is σ = 70401482. Its totient is φ = 70401480.

The previous prime is 70401439. The next prime is 70401497. The reversal of 70401481 is 18410407.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68211081 + 2190400 = 8259^2 + 1480^2 .

It is a cyclic number.

It is not a de Polignac number, because 70401481 - 2¹⁵ = 70368713 is a prime.

It is a super-2 number, since 2×70401481² = 9912737053986722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70401421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35200740 + 35200741.

It is an arithmetic number, because the mean of its divisors is an integer number (35200741).

Almost surely, 2^70401481 is an apocalyptic number.

It is an amenable number.

70401481 is a deficient number, since it is larger than the sum of its proper divisors (1).

70401481 is an equidigital number, since it uses as much as digits as its factorization.

70401481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 70401481 is about 8390.5590397780. The cubic root of 70401481 is about 412.9149416298.

Adding to 70401481 its reverse (18410407), we get a palindrome (88811888).

The spelling of 70401481 in words is "seventy million, four hundred one thousand, four hundred eighty-one".