155035001 has 6 divisors (see below), whose sum is σ = 170410506. Its totient is φ = 140940800.

The previous prime is 155034967. The next prime is 155035009. The reversal of 155035001 is 100530551.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 101525776 + 53509225 = 10076^2 + 7315^2 .

It is a de Polignac number, because none of the positive numbers 2^k-155035001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155035009) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 640520 + ... + 640761.

It is an arithmetic number, because the mean of its divisors is an integer number (28401751).

Almost surely, 2^155035001 is an apocalyptic number.

155035001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

155035001 is a deficient number, since it is larger than the sum of its proper divisors (15375505).

155035001 is a wasteful number, since it uses less digits than its factorization.

155035001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281303 (or 1281292 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 155035001 is about 12451.3051926294. The cubic root of 155035001 is about 537.2089656469.

Adding to 155035001 its reverse (100530551), we get a palindrome (255565552).

The spelling of 155035001 in words is "one hundred fifty-five million, thirty-five thousand, one".