155213043 has 8 divisors (see below), whose sum is σ = 219124368. Its totient is φ = 97388544.

The previous prime is 155213021. The next prime is 155213081. The reversal of 155213043 is 340312551.

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

It is not a de Polignac number, because 155213043 - 2⁸ = 155212787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155213083) 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 7 ways as a sum of consecutive naturals, for example, 1521646 + ... + 1521747.

It is an arithmetic number, because the mean of its divisors is an integer number (27390546).

Almost surely, 2^155213043 is an apocalyptic number.

155213043 is a deficient number, since it is larger than the sum of its proper divisors (63911325).

155213043 is a wasteful number, since it uses less digits than its factorization.

155213043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3043413.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 155213043 is about 12458.4526727840. The cubic root of 155213043 is about 537.4145303436.

Adding to 155213043 its reverse (340312551), we get a palindrome (495525594).

The spelling of 155213043 in words is "one hundred fifty-five million, two hundred thirteen thousand, forty-three".