1555136422 has 24 divisors (see below), whose sum is σ = 2716105176. Its totient is φ = 665860608.

The previous prime is 1555136413. The next prime is 1555136459. The reversal of 1555136422 is 2246315551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106113 + ... + 119875.

It is an arithmetic number, because the mean of its divisors is an integer number (113171049).

Almost surely, 2^1555136422 is an apocalyptic number.

1555136422 is a deficient number, since it is larger than the sum of its proper divisors (1160968754).

1555136422 is a wasteful number, since it uses less digits than its factorization.

1555136422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14932 (or 14925 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The square root of 1555136422 is about 39435.2180417454. The cubic root of 1555136422 is about 1158.5714732756.

The spelling of 1555136422 in words is "one billion, five hundred fifty-five million, one hundred thirty-six thousand, four hundred twenty-two".