149734569 has 16 divisors (see below), whose sum is σ = 206856000. Its totient is φ = 96229056.

The previous prime is 149734567. The next prime is 149734601. The reversal of 149734569 is 965437941.

It is not a de Polignac number, because 149734569 - 2¹ = 149734567 is a prime.

It is a super-2 number, since 2×149734569² = 44840882307231522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (149734567) 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 in 15 ways as a sum of consecutive naturals, for example, 87282 + ... + 88980.

It is an arithmetic number, because the mean of its divisors is an integer number (12928500).

Almost surely, 2^149734569 is an apocalyptic number.

It is an amenable number.

149734569 is a deficient number, since it is larger than the sum of its proper divisors (57121431).

149734569 is a wasteful number, since it uses less digits than its factorization.

149734569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2744.

The product of its digits is 816480, while the sum is 48.

The square root of 149734569 is about 12236.6077407098. The cubic root of 149734569 is about 531.0156967423.

The spelling of 149734569 in words is "one hundred forty-nine million, seven hundred thirty-four thousand, five hundred sixty-nine".