149189729 has 8 divisors (see below), whose sum is σ = 169122240. Its totient is φ = 130465296.

The previous prime is 149189723. The next prime is 149189737. The reversal of 149189729 is 927981941.

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

It is not a de Polignac number, because 149189729 - 2¹⁶ = 149124193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149189723) 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, 301757 + ... + 302250.

It is an arithmetic number, because the mean of its divisors is an integer number (21140280).

Almost surely, 2^149189729 is an apocalyptic number.

149189729 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

149189729 is a deficient number, since it is larger than the sum of its proper divisors (19932511).

149189729 is a wasteful number, since it uses less digits than its factorization.

149189729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604039.

The product of its digits is 326592, while the sum is 50.

The square root of 149189729 is about 12214.3247459694. The cubic root of 149189729 is about 530.3708440533.

The spelling of 149189729 in words is "one hundred forty-nine million, one hundred eighty-nine thousand, seven hundred twenty-nine".