63430155 has 32 divisors (see below), whose sum is σ = 113094720. Its totient is φ = 33730560.

The previous prime is 63430153. The next prime is 63430201. The reversal of 63430155 is 55103436.

It is not a de Polignac number, because 63430155 - 2¹ = 63430153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (63430153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86169 + ... + 86901.

It is an arithmetic number, because the mean of its divisors is an integer number (3534210).

Almost surely, 2^63430155 is an apocalyptic number.

63430155 is a deficient number, since it is larger than the sum of its proper divisors (49664565).

63430155 is a wasteful number, since it uses less digits than its factorization.

63430155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388 (or 1382 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 63430155 is about 7964.3050544288. The cubic root of 63430155 is about 398.8092819098.

The spelling of 63430155 in words is "sixty-three million, four hundred thirty thousand, one hundred fifty-five".