158195252 has 6 divisors (see below), whose sum is σ = 276841698. Its totient is φ = 79097624.

The previous prime is 158195243. The next prime is 158195269. The reversal of 158195252 is 252591851.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 120912016 + 37283236 = 10996^2 + 6106^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19774403 + ... + 19774410.

It is an arithmetic number, because the mean of its divisors is an integer number (46140283).

Almost surely, 2^158195252 is an apocalyptic number.

It is an amenable number.

158195252 is a deficient number, since it is larger than the sum of its proper divisors (118646446).

158195252 is a wasteful number, since it uses less digits than its factorization.

158195252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39548817 (or 39548815 counting only the distinct ones).

The product of its digits is 36000, while the sum is 38.

The square root of 158195252 is about 12577.5693995303. The cubic root of 158195252 is about 540.8346169982.

The spelling of 158195252 in words is "one hundred fifty-eight million, one hundred ninety-five thousand, two hundred fifty-two".