155200541 has 2 divisors, whose sum is σ = 155200542. Its totient is φ = 155200540.

The previous prime is 155200537. The next prime is 155200543. The reversal of 155200541 is 145002551.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150160516 + 5040025 = 12254^2 + 2245^2 .

It is a cyclic number.

It is not a de Polignac number, because 155200541 - 2² = 155200537 is a prime.

Together with 155200543, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155200543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77600270 + 77600271.

It is an arithmetic number, because the mean of its divisors is an integer number (77600271).

Almost surely, 2^155200541 is an apocalyptic number.

It is an amenable number.

155200541 is a deficient number, since it is larger than the sum of its proper divisors (1).

155200541 is an equidigital number, since it uses as much as digits as its factorization.

155200541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 155200541 is about 12457.9509149780. The cubic root of 155200541 is about 537.4001008499.

The spelling of 155200541 in words is "one hundred fifty-five million, two hundred thousand, five hundred forty-one".