155404126 has 4 divisors (see below), whose sum is σ = 233106192. Its totient is φ = 77702062.

The previous prime is 155404111. The next prime is 155404153. The reversal of 155404126 is 621404551.

155404126 is digitally balanced in base 2, because in such base 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: 621404551 = 601 ⋅1033951.

It is a junction number, because it is equal to n+sod(n) for n = 155404094 and 155404103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38851030 + ... + 38851033.

It is an arithmetic number, because the mean of its divisors is an integer number (58276548).

Almost surely, 2^155404126 is an apocalyptic number.

155404126 is a deficient number, since it is larger than the sum of its proper divisors (77702066).

155404126 is an equidigital number, since it uses as much as digits as its factorization.

155404126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77702065.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 155404126 is about 12466.1191234482. The cubic root of 155404126 is about 537.6349771707.

Adding to 155404126 its reverse (621404551), we get a palindrome (776808677).

The spelling of 155404126 in words is "one hundred fifty-five million, four hundred four thousand, one hundred twenty-six".