149734969 has 2 divisors, whose sum is σ = 149734970. Its totient is φ = 149734968.

The previous prime is 149734939. The next prime is 149734973. The reversal of 149734969 is 969437941.

149734969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149157369 + 577600 = 12213^2 + 760^2 .

It is a cyclic number.

It is not a de Polignac number, because 149734969 - 2⁷ = 149734841 is a prime.

It is a super-2 number, since 2×149734969² = 44841121882861922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (149734909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74867484 + 74867485.

It is an arithmetic number, because the mean of its divisors is an integer number (74867485).

Almost surely, 2^149734969 is an apocalyptic number.

It is an amenable number.

149734969 is a deficient number, since it is larger than the sum of its proper divisors (1).

149734969 is an equidigital number, since it uses as much as digits as its factorization.

149734969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1469664, while the sum is 52.

The square root of 149734969 is about 12236.6240850980. The cubic root of 149734969 is about 531.0161695926.

The spelling of 149734969 in words is "one hundred forty-nine million, seven hundred thirty-four thousand, nine hundred sixty-nine".