155464263 has 12 divisors (see below), whose sum is σ = 224677440. Its totient is φ = 103588416.

The previous prime is 155464261. The next prime is 155464271. The reversal of 155464263 is 362464551.

155464263 is a `hidden beast` number, since 1 + 5 + 5 + 4 + 642 + 6 + 3 = 666.

It is not a de Polignac number, because 155464263 - 2¹ = 155464261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155464261) 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 11 ways as a sum of consecutive naturals, for example, 21295 + ... + 27647.

It is an arithmetic number, because the mean of its divisors is an integer number (18723120).

Almost surely, 2^155464263 is an apocalyptic number.

155464263 is a deficient number, since it is larger than the sum of its proper divisors (69213177).

155464263 is a wasteful number, since it uses less digits than its factorization.

155464263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9078 (or 9075 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 155464263 is about 12468.5309078496. The cubic root of 155464263 is about 537.7043180689.

The spelling of 155464263 in words is "one hundred fifty-five million, four hundred sixty-four thousand, two hundred sixty-three".