156653742 has 64 divisors (see below), whose sum is σ = 381901824. Its totient is φ = 41817600.

The previous prime is 156653723. The next prime is 156653747. The reversal of 156653742 is 247356651.

156653742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 156653742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156653747) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107088 + ... + 108540.

It is an arithmetic number, because the mean of its divisors is an integer number (5967216).

Almost surely, 2^156653742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156653742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190950912).

156653742 is an abundant number, since it is smaller than the sum of its proper divisors (225248082).

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

156653742 is a wasteful number, since it uses less digits than its factorization.

156653742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633.

The product of its digits is 151200, while the sum is 39.

The square root of 156653742 is about 12516.1392609702. The cubic root of 156653742 is about 539.0721859163.

The spelling of 156653742 in words is "one hundred fifty-six million, six hundred fifty-three thousand, seven hundred forty-two".