158001420 has 48 divisors (see below), whose sum is σ = 456680448. Its totient is φ = 40774080.

The previous prime is 158001409. The next prime is 158001449. The reversal of 158001420 is 24100851.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40614 + ... + 44333.

It is an arithmetic number, because the mean of its divisors is an integer number (9514176).

Almost surely, 2^158001420 is an apocalyptic number.

158001420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158001420 is an abundant number, since it is smaller than the sum of its proper divisors (298679028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

158001420 is a wasteful number, since it uses less digits than its factorization.

158001420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84990 (or 84988 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 158001420 is about 12569.8615744168. The cubic root of 158001420 is about 540.6136371252.

The spelling of 158001420 in words is "one hundred fifty-eight million, one thousand, four hundred twenty".