149742029 has 4 divisors (see below), whose sum is σ = 156252576. Its totient is φ = 143231484.

The previous prime is 149742011. The next prime is 149742077. The reversal of 149742029 is 920247941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 920247941 = 6833 ⋅134677.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149742029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149741983 and 149742001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149742079) 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, 3255239 + ... + 3255284.

It is an arithmetic number, because the mean of its divisors is an integer number (39063144).

Almost surely, 2^149742029 is an apocalyptic number.

It is an amenable number.

149742029 is a deficient number, since it is larger than the sum of its proper divisors (6510547).

149742029 is an equidigital number, since it uses as much as digits as its factorization.

149742029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6510546.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 149742029 is about 12236.9125599556. The cubic root of 149742029 is about 531.0245152611.

The spelling of 149742029 in words is "one hundred forty-nine million, seven hundred forty-two thousand, twenty-nine".