149076769 has 2 divisors, whose sum is σ = 149076770. Its totient is φ = 149076768.

The previous prime is 149076761. The next prime is 149076803. The reversal of 149076769 is 967670941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132365025 + 16711744 = 11505^2 + 4088^2 .

It is a cyclic number.

It is not a de Polignac number, because 149076769 - 2³ = 149076761 is a prime.

It is a super-2 number, since 2×149076769² = 44447766110958722, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (149076761) 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, 74538384 + 74538385.

It is an arithmetic number, because the mean of its divisors is an integer number (74538385).

Almost surely, 2^149076769 is an apocalyptic number.

It is an amenable number.

149076769 is a deficient number, since it is larger than the sum of its proper divisors (1).

149076769 is an equidigital number, since it uses as much as digits as its factorization.

149076769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 571536, while the sum is 49.

The square root of 149076769 is about 12209.6997915592. The cubic root of 149076769 is about 530.2369523127.

The spelling of 149076769 in words is "one hundred forty-nine million, seventy-six thousand, seven hundred sixty-nine".