155312541 has 6 divisors (see below), whose sum is σ = 224340350. Its totient is φ = 103541688.

The previous prime is 155312519. The next prime is 155312543. The reversal of 155312541 is 145213551.

It can be written as a sum of positive squares in only one way, i.e., 87497316 + 67815225 = 9354^2 + 8235^2 .

It is not a de Polignac number, because 155312541 - 2⁷ = 155312413 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155312543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8628466 + ... + 8628483.

Almost surely, 2^155312541 is an apocalyptic number.

It is an amenable number.

155312541 is a deficient number, since it is larger than the sum of its proper divisors (69027809).

155312541 is a wasteful number, since it uses less digits than its factorization.

155312541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17256955 (or 17256952 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 155312541 is about 12462.4452255567. The cubic root of 155312541 is about 537.5293408177.

The spelling of 155312541 in words is "one hundred fifty-five million, three hundred twelve thousand, five hundred forty-one".