155201530 has 16 divisors (see below), whose sum is σ = 304759584. Its totient is φ = 56436880.

The previous prime is 155201513. The next prime is 155201537. The reversal of 155201530 is 35102551.

155201530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (155201537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 705352 + ... + 705571.

It is an arithmetic number, because the mean of its divisors is an integer number (19047474).

Almost surely, 2^155201530 is an apocalyptic number.

155201530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155201530 is a deficient number, since it is larger than the sum of its proper divisors (149558054).

155201530 is a wasteful number, since it uses less digits than its factorization.

155201530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410941.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 155201530 is about 12457.9906084408. The cubic root of 155201530 is about 537.4012423570.

The spelling of 155201530 in words is "one hundred fifty-five million, two hundred one thousand, five hundred thirty".