149739729 has 8 divisors (see below), whose sum is σ = 208333632. Its totient is φ = 95486160.

The previous prime is 149739647. The next prime is 149739761. The reversal of 149739729 is 927937941.

149739729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 149739729 - 2¹³ = 149731537 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (149739769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1085002 + ... + 1085139.

It is an arithmetic number, because the mean of its divisors is an integer number (26041704).

Almost surely, 2^149739729 is an apocalyptic number.

It is an amenable number.

149739729 is a deficient number, since it is larger than the sum of its proper divisors (58593903).

149739729 is a wasteful number, since it uses less digits than its factorization.

149739729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2170167.

The product of its digits is 857304, while the sum is 51.

The square root of 149739729 is about 12236.8185816412. The cubic root of 149739729 is about 531.0217964461.

The spelling of 149739729 in words is "one hundred forty-nine million, seven hundred thirty-nine thousand, seven hundred twenty-nine".