404542151 has 16 divisors (see below), whose sum is σ = 446883360. Its totient is φ = 363847680.

The previous prime is 404542133. The next prime is 404542169. The reversal of 404542151 is 151245404.

It is an interprime number because it is at equal distance from previous prime (404542133) and next prime (404542169).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404542151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 404542151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404542111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357755 + ... + 358883.

It is an arithmetic number, because the mean of its divisors is an integer number (27930210).

Almost surely, 2^404542151 is an apocalyptic number.

404542151 is a deficient number, since it is larger than the sum of its proper divisors (42341209).

404542151 is a wasteful number, since it uses less digits than its factorization.

404542151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 404542151 is about 20113.2332308856. The cubic root of 404542151 is about 739.5847140279.

Adding to 404542151 its reverse (151245404), we get a palindrome (555787555).

The spelling of 404542151 in words is "four hundred four million, five hundred forty-two thousand, one hundred fifty-one".