155406927 has 8 divisors (see below), whose sum is σ = 223148464. Its totient is φ = 95635008.

The previous prime is 155406913. The next prime is 155406931. The reversal of 155406927 is 729604551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 155406927 - 2¹⁰ = 155405903 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 3984793 = 155406927 / (1 + 5 + 5 + 4 + 0 + 6 + 9 + 2 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155406967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1992358 + ... + 1992435.

It is an arithmetic number, because the mean of its divisors is an integer number (27893558).

Almost surely, 2^155406927 is an apocalyptic number.

155406927 is a deficient number, since it is larger than the sum of its proper divisors (67741537).

155406927 is a wasteful number, since it uses less digits than its factorization.

155406927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3984809.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 155406927 is about 12466.2314674484. The cubic root of 155406927 is about 537.6382072577.

The spelling of 155406927 in words is "one hundred fifty-five million, four hundred six thousand, nine hundred twenty-seven".