155233541 has 2 divisors, whose sum is σ = 155233542. Its totient is φ = 155233540.

The previous prime is 155233501. The next prime is 155233577. The reversal of 155233541 is 145332551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154902916 + 330625 = 12446^2 + 575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155233541 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155233501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77616770 + 77616771.

It is an arithmetic number, because the mean of its divisors is an integer number (77616771).

Almost surely, 2^155233541 is an apocalyptic number.

It is an amenable number.

155233541 is a deficient number, since it is larger than the sum of its proper divisors (1).

155233541 is an equidigital number, since it uses as much as digits as its factorization.

155233541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9000, while the sum is 29.

The square root of 155233541 is about 12459.2752999522. The cubic root of 155233541 is about 537.4381869425.

The spelling of 155233541 in words is "one hundred fifty-five million, two hundred thirty-three thousand, five hundred forty-one".