161230455 has 12 divisors (see below), whose sum is σ = 279466200. Its totient is φ = 85989552.

The previous prime is 161230453. The next prime is 161230457. The reversal of 161230455 is 554032161.

161230455 is a `hidden beast` number, since 1 + 612 + 3 + 0 + 45 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (161230453) and next prime (161230457).

It is not a de Polignac number, because 161230455 - 2¹ = 161230453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161230451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1791405 + ... + 1791494.

It is an arithmetic number, because the mean of its divisors is an integer number (23288850).

Almost surely, 2^161230455 is an apocalyptic number.

161230455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

161230455 is a deficient number, since it is larger than the sum of its proper divisors (118235745).

161230455 is a wasteful number, since it uses less digits than its factorization.

161230455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3582910 (or 3582907 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 161230455 is about 12697.6554922553. The cubic root of 161230455 is about 544.2716246880.

The spelling of 161230455 in words is "one hundred sixty-one million, two hundred thirty thousand, four hundred fifty-five".