153721934 has 4 divisors (see below), whose sum is σ = 230582904. Its totient is φ = 76860966.

The previous prime is 153721927. The next prime is 153721979. The reversal of 153721934 is 439127351.

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

It is a junction number, because it is equal to n+sod(n) for n = 153721894 and 153721903.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 38430482 + ... + 38430485.

It is an arithmetic number, because the mean of its divisors is an integer number (57645726).

Almost surely, 2^153721934 is an apocalyptic number.

153721934 is a deficient number, since it is larger than the sum of its proper divisors (76860970).

153721934 is an equidigital number, since it uses as much as digits as its factorization.

153721934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76860969.

The product of its digits is 22680, while the sum is 35.

The square root of 153721934 is about 12398.4649856343. The cubic root of 153721934 is about 535.6880354951.

The spelling of 153721934 in words is "one hundred fifty-three million, seven hundred twenty-one thousand, nine hundred thirty-four".