155002051 has 4 divisors (see below), whose sum is σ = 157926672. Its totient is φ = 152077432.

The previous prime is 155002049. The next prime is 155002063. The reversal of 155002051 is 150200551.

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

It is a cyclic number.

It is not a de Polignac number, because 155002051 - 2¹ = 155002049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155002031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1462231 + ... + 1462336.

It is an arithmetic number, because the mean of its divisors is an integer number (39481668).

Almost surely, 2^155002051 is an apocalyptic number.

155002051 is a deficient number, since it is larger than the sum of its proper divisors (2924621).

155002051 is an equidigital number, since it uses as much as digits as its factorization.

155002051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2924620.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 155002051 is about 12449.9819678584. The cubic root of 155002051 is about 537.1709048016.

The spelling of 155002051 in words is "one hundred fifty-five million, two thousand, fifty-one".