155346601 has 2 divisors, whose sum is σ = 155346602. Its totient is φ = 155346600.

The previous prime is 155346599. The next prime is 155346613. The reversal of 155346601 is 106643551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92160000 + 63186601 = 9600^2 + 7949^2 .

It is a cyclic number.

It is not a de Polignac number, because 155346601 - 2¹ = 155346599 is a prime.

Together with 155346599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (155346101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77673300 + 77673301.

It is an arithmetic number, because the mean of its divisors is an integer number (77673301).

Almost surely, 2^155346601 is an apocalyptic number.

It is an amenable number.

155346601 is a deficient number, since it is larger than the sum of its proper divisors (1).

155346601 is an equidigital number, since it uses as much as digits as its factorization.

155346601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 155346601 is about 12463.8116561508. The cubic root of 155346601 is about 537.5686312941.

The spelling of 155346601 in words is "one hundred fifty-five million, three hundred forty-six thousand, six hundred one".