155664134 has 4 divisors (see below), whose sum is σ = 233496204. Its totient is φ = 77832066.

The previous prime is 155664133. The next prime is 155664137. The reversal of 155664134 is 431466551.

155664134 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 431466551 = 12917 ⋅33403.

It is a super-2 number, since 2×155664134² = 48462645227939912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155664094 and 155664103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155664133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38916032 + ... + 38916035.

It is an arithmetic number, because the mean of its divisors is an integer number (58374051).

Almost surely, 2^155664134 is an apocalyptic number.

155664134 is a deficient number, since it is larger than the sum of its proper divisors (77832070).

155664134 is an equidigital number, since it uses as much as digits as its factorization.

155664134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77832069.

The product of its digits is 43200, while the sum is 35.

The square root of 155664134 is about 12476.5433514255. The cubic root of 155664134 is about 537.9346506954.

The spelling of 155664134 in words is "one hundred fifty-five million, six hundred sixty-four thousand, one hundred thirty-four".