158405225 has 12 divisors (see below), whose sum is σ = 214279440. Its totient is φ = 115203600.

The previous prime is 158405213. The next prime is 158405239. The reversal of 158405225 is 522504851.

It is not a de Polignac number, because 158405225 - 2⁶ = 158405161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 158405191 and 158405200.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 287735 + ... + 288284.

It is an arithmetic number, because the mean of its divisors is an integer number (17856620).

Almost surely, 2^158405225 is an apocalyptic number.

It is an amenable number.

158405225 is a deficient number, since it is larger than the sum of its proper divisors (55874215).

158405225 is a wasteful number, since it uses less digits than its factorization.

158405225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576040 (or 576035 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 32.

The square root of 158405225 is about 12585.9137530813. The cubic root of 158405225 is about 541.0737949750.

The spelling of 158405225 in words is "one hundred fifty-eight million, four hundred five thousand, two hundred twenty-five".