155241131 has 2 divisors, whose sum is σ = 155241132. Its totient is φ = 155241130.

The previous prime is 155241109. The next prime is 155241167. The reversal of 155241131 is 131142551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 155241131 - 2⁶ = 155241067 is a prime.

It is a super-2 number, since 2×155241131² = 48199617508318322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 155241097 and 155241106.

It is not a weakly prime, because it can be changed into another prime (155241431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77620565 + 77620566.

It is an arithmetic number, because the mean of its divisors is an integer number (77620566).

Almost surely, 2^155241131 is an apocalyptic number.

155241131 is a deficient number, since it is larger than the sum of its proper divisors (1).

155241131 is an equidigital number, since it uses as much as digits as its factorization.

155241131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 600, while the sum is 23.

The square root of 155241131 is about 12459.5798885837. The cubic root of 155241131 is about 537.4469459803.

Adding to 155241131 its reverse (131142551), we get a palindrome (286383682).

The spelling of 155241131 in words is "one hundred fifty-five million, two hundred forty-one thousand, one hundred thirty-one".