155321054 has 32 divisors (see below), whose sum is σ = 270950400. Its totient is φ = 65404512.

The previous prime is 155321053. The next prime is 155321057. The reversal of 155321054 is 450123551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155321051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 405347 + ... + 405729.

It is an arithmetic number, because the mean of its divisors is an integer number (8467200).

Almost surely, 2^155321054 is an apocalyptic number.

155321054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

155321054 is a deficient number, since it is larger than the sum of its proper divisors (115629346).

155321054 is a wasteful number, since it uses less digits than its factorization.

155321054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 155321054 is about 12462.7867670116. The cubic root of 155321054 is about 537.5391616680.

The spelling of 155321054 in words is "one hundred fifty-five million, three hundred twenty-one thousand, fifty-four".