69398149 has 2 divisors, whose sum is σ = 69398150. Its totient is φ = 69398148.

The previous prime is 69398143. The next prime is 69398171. The reversal of 69398149 is 94189396.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48302500 + 21095649 = 6950^2 + 4593^2 .

It is a cyclic number.

It is not a de Polignac number, because 69398149 - 2³ = 69398141 is a prime.

It is a super-2 number, since 2×69398149² = 9632206169252402, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69398141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34699074 + 34699075.

It is an arithmetic number, because the mean of its divisors is an integer number (34699075).

Almost surely, 2^69398149 is an apocalyptic number.

It is an amenable number.

69398149 is a deficient number, since it is larger than the sum of its proper divisors (1).

69398149 is an equidigital number, since it uses as much as digits as its factorization.

69398149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904, while the sum is 49.

The square root of 69398149 is about 8330.5551435664. Note that the first 3 decimals coincide. The cubic root of 69398149 is about 410.9439859097.

The spelling of 69398149 in words is "sixty-nine million, three hundred ninety-eight thousand, one hundred forty-nine".