149729047 has 16 divisors (see below), whose sum is σ = 175355712. Its totient is φ = 126558720.

The previous prime is 149729023. The next prime is 149729051. The reversal of 149729047 is 740927941.

It is a cyclic number.

It is not a de Polignac number, because 149729047 - 2¹⁵ = 149696279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149728994 and 149729012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149729017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 979 + ... + 17332.

It is an arithmetic number, because the mean of its divisors is an integer number (10959732).

Almost surely, 2^149729047 is an apocalyptic number.

149729047 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

149729047 is a deficient number, since it is larger than the sum of its proper divisors (25626665).

149729047 is a wasteful number, since it uses less digits than its factorization.

149729047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18378.

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 149729047 is about 12236.3821042006. The cubic root of 149729047 is about 531.0091689584.

The spelling of 149729047 in words is "one hundred forty-nine million, seven hundred twenty-nine thousand, forty-seven".