155403741 has 4 divisors (see below), whose sum is σ = 207204992. Its totient is φ = 103602492.

The previous prime is 155403739. The next prime is 155403757. The reversal of 155403741 is 147304551.

155403741 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 155403741 - 2¹ = 155403739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155403699 and 155403708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155403041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25900621 + ... + 25900626.

It is an arithmetic number, because the mean of its divisors is an integer number (51801248).

Almost surely, 2^155403741 is an apocalyptic number.

It is an amenable number.

155403741 is a deficient number, since it is larger than the sum of its proper divisors (51801251).

155403741 is an equidigital number, since it uses as much as digits as its factorization.

155403741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51801250.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 155403741 is about 12466.1036815839. The cubic root of 155403741 is about 537.6345331893.

The spelling of 155403741 in words is "one hundred fifty-five million, four hundred three thousand, seven hundred forty-one".