155012045 has 16 divisors (see below), whose sum is σ = 189302400. Its totient is φ = 121834944.

The previous prime is 155012029. The next prime is 155012083. The reversal of 155012045 is 540210551.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 155012045 - 2⁴ = 155012029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155012045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81647 + ... + 83523.

It is an arithmetic number, because the mean of its divisors is an integer number (11831400).

Almost surely, 2^155012045 is an apocalyptic number.

It is an amenable number.

155012045 is a deficient number, since it is larger than the sum of its proper divisors (34290355).

155012045 is a wasteful number, since it uses less digits than its factorization.

155012045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2164.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 155012045 is about 12450.3833274321. The cubic root of 155012045 is about 537.1824495319.

Adding to 155012045 its reverse (540210551), we get a palindrome (695222596).

The spelling of 155012045 in words is "one hundred fifty-five million, twelve thousand, forty-five".