155941601 has 4 divisors (see below), whose sum is σ = 156130992. Its totient is φ = 155752212.

The previous prime is 155941567. The next prime is 155941657. The reversal of 155941601 is 106149551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 155941601 - 2¹⁸ = 155679457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (155949601) 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, 93455 + ... + 95108.

It is an arithmetic number, because the mean of its divisors is an integer number (39032748).

Almost surely, 2^155941601 is an apocalyptic number.

It is an amenable number.

155941601 is a deficient number, since it is larger than the sum of its proper divisors (189391).

155941601 is an equidigital number, since it uses as much as digits as its factorization.

155941601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189390.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 155941601 is about 12487.6579469491. The cubic root of 155941601 is about 538.2540788433.

The spelling of 155941601 in words is "one hundred fifty-five million, nine hundred forty-one thousand, six hundred one".