155950441 has 2 divisors, whose sum is σ = 155950442. Its totient is φ = 155950440.

The previous prime is 155950439. The next prime is 155950451. The reversal of 155950441 is 144059551.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134467216 + 21483225 = 11596^2 + 4635^2 .

It is a cyclic number.

It is not a de Polignac number, because 155950441 - 2¹ = 155950439 is a prime.

Together with 155950439, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 155950397 and 155950406.

It is not a weakly prime, because it can be changed into another prime (155950451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77975220 + 77975221.

It is an arithmetic number, because the mean of its divisors is an integer number (77975221).

Almost surely, 2^155950441 is an apocalyptic number.

It is an amenable number.

155950441 is a deficient number, since it is larger than the sum of its proper divisors (1).

155950441 is an equidigital number, since it uses as much as digits as its factorization.

155950441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18000, while the sum is 34.

The square root of 155950441 is about 12488.0118914101. The cubic root of 155950441 is about 538.2642494800.

The spelling of 155950441 in words is "one hundred fifty-five million, nine hundred fifty thousand, four hundred forty-one".