155801045 has 16 divisors (see below), whose sum is σ = 198122880. Its totient is φ = 117288000.

The previous prime is 155801029. The next prime is 155801047. The reversal of 155801045 is 540108551.

155801045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 155801045 - 2⁴ = 155801029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155800999 and 155801017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155801047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8915 + ... + 19775.

It is an arithmetic number, because the mean of its divisors is an integer number (12382680).

Almost surely, 2^155801045 is an apocalyptic number.

It is an amenable number.

155801045 is a deficient number, since it is larger than the sum of its proper divisors (42321835).

155801045 is a wasteful number, since it uses less digits than its factorization.

155801045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11036.

The product of its (nonzero) digits is 4000, while the sum is 29.

The square root of 155801045 is about 12482.0288815561. The cubic root of 155801045 is about 538.0923140514.

Adding to 155801045 its reverse (540108551), we get a palindrome (695909596).

The spelling of 155801045 in words is "one hundred fifty-five million, eight hundred one thousand, forty-five".