155082001 has 4 divisors (see below), whose sum is σ = 155108404. Its totient is φ = 155055600.

The previous prime is 155081987. The next prime is 155082013. The reversal of 155082001 is 100280551.

155082001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68145025 + 86936976 = 8255^2 + 9324^2 .

It is a cyclic number.

It is not a de Polignac number, because 155082001 - 2⁹ = 155081489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155082071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31 + ... + 17611.

It is an arithmetic number, because the mean of its divisors is an integer number (38777101).

Almost surely, 2^155082001 is an apocalyptic number.

It is an amenable number.

155082001 is a deficient number, since it is larger than the sum of its proper divisors (26403).

155082001 is an equidigital number, since it uses as much as digits as its factorization.

155082001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26402.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 155082001 is about 12453.1924019506. The cubic root of 155082001 is about 537.2632464442.

The spelling of 155082001 in words is "one hundred fifty-five million, eighty-two thousand, one".