155114961 has 4 divisors (see below), whose sum is σ = 206819952. Its totient is φ = 103409972.

The previous prime is 155114959. The next prime is 155114969. The reversal of 155114961 is 169411551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 169411551 = 3 ⋅56470517.

It is a cyclic number.

It is not a de Polignac number, because 155114961 - 2¹ = 155114959 is a prime.

It is a super-2 number, since 2×155114961² = 48121302252063042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (155114969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25852491 + ... + 25852496.

It is an arithmetic number, because the mean of its divisors is an integer number (51704988).

Almost surely, 2^155114961 is an apocalyptic number.

It is an amenable number.

155114961 is a deficient number, since it is larger than the sum of its proper divisors (51704991).

155114961 is an equidigital number, since it uses as much as digits as its factorization.

155114961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51704990.

The product of its digits is 5400, while the sum is 33.

The square root of 155114961 is about 12454.5156870912. The cubic root of 155114961 is about 537.3013057550.

The spelling of 155114961 in words is "one hundred fifty-five million, one hundred fourteen thousand, nine hundred sixty-one".