155443145 has 32 divisors (see below), whose sum is σ = 226243584. Its totient is φ = 100972800.

The previous prime is 155443129. The next prime is 155443153. The reversal of 155443145 is 541344551.

It is not a de Polignac number, because 155443145 - 2⁴ = 155443129 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18659 + ... + 25671.

It is an arithmetic number, because the mean of its divisors is an integer number (7070112).

Almost surely, 2^155443145 is an apocalyptic number.

It is an amenable number.

155443145 is a deficient number, since it is larger than the sum of its proper divisors (70800439).

155443145 is a wasteful number, since it uses less digits than its factorization.

155443145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7073.

The product of its digits is 24000, while the sum is 32.

The square root of 155443145 is about 12467.6840271159. The cubic root of 155443145 is about 537.6799700209.

Adding to 155443145 its reverse (541344551), we get a palindrome (696787696).

The spelling of 155443145 in words is "one hundred fifty-five million, four hundred forty-three thousand, one hundred forty-five".