155092001 has 4 divisors (see below), whose sum is σ = 155122500. Its totient is φ = 155061504.

The previous prime is 155091991. The next prime is 155092009. The reversal of 155092001 is 100290551.

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 121440400 + 33651601 = 11020^2 + 5801^2 .

It is a cyclic number.

It is not a de Polignac number, because 155092001 - 2¹⁴ = 155075617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155092009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5576 + ... + 18473.

It is an arithmetic number, because the mean of its divisors is an integer number (38780625).

Almost surely, 2^155092001 is an apocalyptic number.

It is an amenable number.

155092001 is a deficient number, since it is larger than the sum of its proper divisors (30499).

155092001 is an equidigital number, since it uses as much as digits as its factorization.

155092001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30498.

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 155092001 is about 12453.5938989514. The cubic root of 155092001 is about 537.2747941350.

The spelling of 155092001 in words is "one hundred fifty-five million, ninety-two thousand, one".