155654201 has 2 divisors, whose sum is σ = 155654202. Its totient is φ = 155654200.

The previous prime is 155654189. The next prime is 155654221. The reversal of 155654201 is 102456551.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154753600 + 900601 = 12440^2 + 949^2 .

It is a cyclic number.

It is not a de Polignac number, because 155654201 - 2¹⁰ = 155653177 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (155654221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77827100 + 77827101.

It is an arithmetic number, because the mean of its divisors is an integer number (77827101).

Almost surely, 2^155654201 is an apocalyptic number.

It is an amenable number.

155654201 is a deficient number, since it is larger than the sum of its proper divisors (1).

155654201 is an equidigital number, since it uses as much as digits as its factorization.

155654201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 155654201 is about 12476.1452780897. The cubic root of 155654201 is about 537.9232084995.

The spelling of 155654201 in words is "one hundred fifty-five million, six hundred fifty-four thousand, two hundred one".