398454151 has 4 divisors (see below), whose sum is σ = 400840272. Its totient is φ = 396068032.

The previous prime is 398454137. The next prime is 398454163. The reversal of 398454151 is 151454893.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-398454151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398454451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1192810 + ... + 1193143.

It is an arithmetic number, because the mean of its divisors is an integer number (100210068).

Almost surely, 2^398454151 is an apocalyptic number.

398454151 is a deficient number, since it is larger than the sum of its proper divisors (2386121).

398454151 is a wasteful number, since it uses less digits than its factorization.

398454151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2386120.

The product of its digits is 86400, while the sum is 40.

The square root of 398454151 is about 19961.3163644084. The cubic root of 398454151 is about 735.8559149805.

The spelling of 398454151 in words is "three hundred ninety-eight million, four hundred fifty-four thousand, one hundred fifty-one".