155030131 has 2 divisors, whose sum is σ = 155030132. Its totient is φ = 155030130.

The previous prime is 155030129. The next prime is 155030147. The reversal of 155030131 is 131030551.

It is a weak prime.

It is an emirp because it is prime and its reverse (131030551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 155030131 - 2¹ = 155030129 is a prime.

It is a super-2 number, since 2×155030131² = 48068683035754322, which contains 22 as substring.

Together with 155030129, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 155030099 and 155030108.

It is not a weakly prime, because it can be changed into another prime (155030171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77515065 + 77515066.

It is an arithmetic number, because the mean of its divisors is an integer number (77515066).

Almost surely, 2^155030131 is an apocalyptic number.

155030131 is a deficient number, since it is larger than the sum of its proper divisors (1).

155030131 is an equidigital number, since it uses as much as digits as its factorization.

155030131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 155030131 is about 12451.1096292660. The cubic root of 155030131 is about 537.2033406052.

Adding to 155030131 its reverse (131030551), we get a palindrome (286060682).

The spelling of 155030131 in words is "one hundred fifty-five million, thirty thousand, one hundred thirty-one".