149729539 has 4 divisors (see below), whose sum is σ = 150154056. Its totient is φ = 149305024.

The previous prime is 149729537. The next prime is 149729579. The reversal of 149729539 is 935927941.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 149729539 - 2¹ = 149729537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149729492 and 149729501.

It is not an unprimeable number, because it can be changed into a prime (149729533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211729 + ... + 212434.

It is an arithmetic number, because the mean of its divisors is an integer number (37538514).

Almost surely, 2^149729539 is an apocalyptic number.

149729539 is a deficient number, since it is larger than the sum of its proper divisors (424517).

149729539 is an equidigital number, since it uses as much as digits as its factorization.

149729539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424516.

The product of its digits is 612360, while the sum is 49.

The square root of 149729539 is about 12236.4022081656. The cubic root of 149729539 is about 531.0097505784.

The spelling of 149729539 in words is "one hundred forty-nine million, seven hundred twenty-nine thousand, five hundred thirty-nine".