156040149 has 16 divisors (see below), whose sum is σ = 211534400. Its totient is φ = 102301056.

The previous prime is 156040121. The next prime is 156040151. The reversal of 156040149 is 941040651.

It is a happy number.

It is not a de Polignac number, because 156040149 - 2¹³ = 156031957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156040169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43737 + ... + 47169.

It is an arithmetic number, because the mean of its divisors is an integer number (13220900).

Almost surely, 2^156040149 is an apocalyptic number.

It is an amenable number.

156040149 is a deficient number, since it is larger than the sum of its proper divisors (55494251).

156040149 is a wasteful number, since it uses less digits than its factorization.

156040149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3684.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 156040149 is about 12491.6031397095. The cubic root of 156040149 is about 538.3674390002.

The spelling of 156040149 in words is "one hundred fifty-six million, forty thousand, one hundred forty-nine".