158849402 has 4 divisors (see below), whose sum is σ = 238274106. Its totient is φ = 79424700.

The previous prime is 158849371. The next prime is 158849407. The reversal of 158849402 is 204948851.

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

It can be written as a sum of positive squares in only one way, i.e., 129026881 + 29822521 = 11359^2 + 5461^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 158849402.

It is not an unprimeable number, because it can be changed into a prime (158849407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39712349 + ... + 39712352.

Almost surely, 2^158849402 is an apocalyptic number.

158849402 is a deficient number, since it is larger than the sum of its proper divisors (79424704).

158849402 is an equidigital number, since it uses as much as digits as its factorization.

158849402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79424703.

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 158849402 is about 12603.5471991023. The cubic root of 158849402 is about 541.5790566103.

The spelling of 158849402 in words is "one hundred fifty-eight million, eight hundred forty-nine thousand, four hundred two".