156540074 has 8 divisors (see below), whose sum is σ = 235301760. Its totient is φ = 78106156.

The previous prime is 156540071. The next prime is 156540079. The reversal of 156540074 is 470045651.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 156540074.

It is not an unprimeable number, because it can be changed into a prime (156540071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80744 + ... + 82659.

It is an arithmetic number, because the mean of its divisors is an integer number (29412720).

Almost surely, 2^156540074 is an apocalyptic number.

156540074 is a deficient number, since it is larger than the sum of its proper divisors (78761686).

156540074 is a wasteful number, since it uses less digits than its factorization.

156540074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163884.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 156540074 is about 12511.5975798457. The cubic root of 156540074 is about 538.9417707240.

The spelling of 156540074 in words is "one hundred fifty-six million, five hundred forty thousand, seventy-four".