155230541 has 2 divisors, whose sum is σ = 155230542. Its totient is φ = 155230540.

The previous prime is 155230531. The next prime is 155230549. The reversal of 155230541 is 145032551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120538441 + 34692100 = 10979^2 + 5890^2 .

It is a cyclic number.

It is not a de Polignac number, because 155230541 - 2⁶ = 155230477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155230541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155230549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77615270 + 77615271.

It is an arithmetic number, because the mean of its divisors is an integer number (77615271).

Almost surely, 2^155230541 is an apocalyptic number.

It is an amenable number.

155230541 is a deficient number, since it is larger than the sum of its proper divisors (1).

155230541 is an equidigital number, since it uses as much as digits as its factorization.

155230541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 155230541 is about 12459.1549071356. The cubic root of 155230541 is about 537.4347247935.

The spelling of 155230541 in words is "one hundred fifty-five million, two hundred thirty thousand, five hundred forty-one".