156949998 has 8 divisors (see below), whose sum is σ = 313900008. Its totient is φ = 52316664.

The previous prime is 156949997. The next prime is 156950023. The reversal of 156949998 is 899949651.

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

156949998 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156949997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13079161 + ... + 13079172.

It is an arithmetic number, because the mean of its divisors is an integer number (39237501).

Almost surely, 2^156949998 is an apocalyptic number.

156949998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

156949998 is a wasteful number, since it uses less digits than its factorization.

156949998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26158338.

The product of its digits is 6298560, while the sum is 60.

The square root of 156949998 is about 12527.9686302289. The cubic root of 156949998 is about 539.4117943603.

The spelling of 156949998 in words is "one hundred fifty-six million, nine hundred forty-nine thousand, nine hundred ninety-eight".