153680978 has 8 divisors (see below), whose sum is σ = 251478000. Its totient is φ = 69854980.

The previous prime is 153680977. The next prime is 153680993. The reversal of 153680978 is 879086351.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (153680971) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 3492728 + ... + 3492771.

It is an arithmetic number, because the mean of its divisors is an integer number (31434750).

Almost surely, 2^153680978 is an apocalyptic number.

153680978 is a deficient number, since it is larger than the sum of its proper divisors (97797022).

153680978 is a wasteful number, since it uses less digits than its factorization.

153680978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6985512.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 153680978 is about 12396.8132195335. The cubic root of 153680978 is about 535.6404569717.

The spelling of 153680978 in words is "one hundred fifty-three million, six hundred eighty thousand, nine hundred seventy-eight".