149359693 has 8 divisors (see below), whose sum is σ = 174180800. Its totient is φ = 128022300.

The previous prime is 149359667. The next prime is 149359697. The reversal of 149359693 is 396953941.

It is not a de Polignac number, because 149359693 - 2¹⁷ = 149228621 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149359697) 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 7 ways as a sum of consecutive naturals, for example, 217383 + ... + 218068.

It is an arithmetic number, because the mean of its divisors is an integer number (21772600).

Almost surely, 2^149359693 is an apocalyptic number.

It is an amenable number.

149359693 is a deficient number, since it is larger than the sum of its proper divisors (24821107).

149359693 is an frugal number, since it uses more digits than its factorization.

149359693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435472 (or 435458 counting only the distinct ones).

The product of its digits is 787320, while the sum is 49.

The square root of 149359693 is about 12221.2803339094. The cubic root of 149359693 is about 530.5721754728.

The spelling of 149359693 in words is "one hundred forty-nine million, three hundred fifty-nine thousand, six hundred ninety-three".