155243043 has 6 divisors (see below), whose sum is σ = 224239964. Its totient is φ = 103495356.

The previous prime is 155243017. The next prime is 155243047. The reversal of 155243043 is 340342551.

It is not a de Polignac number, because 155243043 - 2⁹ = 155242531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155242998 and 155243016.

It is not an unprimeable number, because it can be changed into a prime (155243047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8624605 + ... + 8624622.

Almost surely, 2^155243043 is an apocalyptic number.

155243043 is a deficient number, since it is larger than the sum of its proper divisors (68996921).

155243043 is a wasteful number, since it uses less digits than its factorization.

155243043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17249233 (or 17249230 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 155243043 is about 12459.6566164562. The cubic root of 155243043 is about 537.4491524281.

Adding to 155243043 its reverse (340342551), we get a palindrome (495585594).

The spelling of 155243043 in words is "one hundred fifty-five million, two hundred forty-three thousand, forty-three".