155145303 has 6 divisors (see below), whose sum is σ = 224098784. Its totient is φ = 103430196.

The previous prime is 155145301. The next prime is 155145371. The reversal of 155145303 is 303541551.

It is not a de Polignac number, because 155145303 - 2¹ = 155145301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155145301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8619175 + ... + 8619192.

Almost surely, 2^155145303 is an apocalyptic number.

155145303 is a deficient number, since it is larger than the sum of its proper divisors (68953481).

155145303 is a wasteful number, since it uses less digits than its factorization.

155145303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17238373 (or 17238370 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 155145303 is about 12455.7337399288. The cubic root of 155145303 is about 537.3363372637.

Adding to 155145303 its reverse (303541551), we get a palindrome (458686854).

The spelling of 155145303 in words is "one hundred fifty-five million, one hundred forty-five thousand, three hundred three".