155233743 has 16 divisors (see below), whose sum is σ = 248997120. Its totient is φ = 84036096.

The previous prime is 155233733. The next prime is 155233747. The reversal of 155233743 is 347332551.

155233743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 155233743 - 2⁶ = 155233679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155233747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194130 + ... + 194927.

It is an arithmetic number, because the mean of its divisors is an integer number (15562320).

Almost surely, 2^155233743 is an apocalyptic number.

155233743 is a deficient number, since it is larger than the sum of its proper divisors (93763377).

155233743 is a wasteful number, since it uses less digits than its factorization.

155233743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389086.

The product of its digits is 37800, while the sum is 33.

The square root of 155233743 is about 12459.2834063601. The cubic root of 155233743 is about 537.4384200590.

The spelling of 155233743 in words is "one hundred fifty-five million, two hundred thirty-three thousand, seven hundred forty-three".