156261426 has 8 divisors (see below), whose sum is σ = 312522864. Its totient is φ = 52087140.

The previous prime is 156261401. The next prime is 156261431. The reversal of 156261426 is 624162651.

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

156261426 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13021780 + ... + 13021791.

It is an arithmetic number, because the mean of its divisors is an integer number (39065358).

Almost surely, 2^156261426 is an apocalyptic number.

156261426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

156261426 is a wasteful number, since it uses less digits than its factorization.

156261426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26043576.

The product of its digits is 17280, while the sum is 33.

The square root of 156261426 is about 12500.4570316449. The cubic root of 156261426 is about 538.6218010257.

The spelling of 156261426 in words is "one hundred fifty-six million, two hundred sixty-one thousand, four hundred twenty-six".