69012481 has 2 divisors, whose sum is σ = 69012482. Its totient is φ = 69012480.

The previous prime is 69012451. The next prime is 69012487. The reversal of 69012481 is 18421096.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58384881 + 10627600 = 7641^2 + 3260^2 .

It is a cyclic number.

It is not a de Polignac number, because 69012481 - 2⁷ = 69012353 is a prime.

It is a super-2 number, since 2×69012481² = 9525445067550722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (69012487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34506240 + 34506241.

It is an arithmetic number, because the mean of its divisors is an integer number (34506241).

Almost surely, 2^69012481 is an apocalyptic number.

It is an amenable number.

69012481 is a deficient number, since it is larger than the sum of its proper divisors (1).

69012481 is an equidigital number, since it uses as much as digits as its factorization.

69012481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 69012481 is about 8307.3750968642. The cubic root of 69012481 is about 410.1813217423.

The spelling of 69012481 in words is "sixty-nine million, twelve thousand, four hundred eighty-one".