155040135 has 16 divisors (see below), whose sum is σ = 248947584. Its totient is φ = 82393632.

The previous prime is 155040121. The next prime is 155040139. The reversal of 155040135 is 531040551.

It is not a de Polignac number, because 155040135 - 2⁷ = 155040007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155040139) 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, 14017 + ... + 22506.

It is an arithmetic number, because the mean of its divisors is an integer number (15559224).

Almost surely, 2^155040135 is an apocalyptic number.

155040135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155040135 is a deficient number, since it is larger than the sum of its proper divisors (93907449).

155040135 is a wasteful number, since it uses less digits than its factorization.

155040135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36814.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 155040135 is about 12451.5113540486. The cubic root of 155040135 is about 537.2148954915.

Adding to 155040135 its reverse (531040551), we get a palindrome (686080686).

The spelling of 155040135 in words is "one hundred fifty-five million, forty thousand, one hundred thirty-five".