151998447 has 8 divisors (see below), whose sum is σ = 204458544. Its totient is φ = 100435328.

The previous prime is 151998437. The next prime is 151998491. The reversal of 151998447 is 744899151.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 151998447 - 2¹⁰ = 151997423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 151998396 and 151998405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151998437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223848 + ... + 224525.

It is an arithmetic number, because the mean of its divisors is an integer number (25557318).

Almost surely, 2^151998447 is an apocalyptic number.

151998447 is a deficient number, since it is larger than the sum of its proper divisors (52460097).

151998447 is a wasteful number, since it uses less digits than its factorization.

151998447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448489.

The product of its digits is 362880, while the sum is 48.

The square root of 151998447 is about 12328.7650233103. The cubic root of 151998447 is about 533.6785121822.

The spelling of 151998447 in words is "one hundred fifty-one million, nine hundred ninety-eight thousand, four hundred forty-seven".