153930857 has 8 divisors (see below), whose sum is σ = 155277000. Its totient is φ = 152589184.

The previous prime is 153930809. The next prime is 153930863. The reversal of 153930857 is 758039351.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 31629376 + 122301481 = 5624^2 + 11059^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 153930857 - 2¹⁶ = 153865321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153530857) 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 7 ways as a sum of consecutive naturals, for example, 119903 + ... + 121179.

It is an arithmetic number, because the mean of its divisors is an integer number (19409625).

Almost surely, 2^153930857 is an apocalyptic number.

It is an amenable number.

153930857 is a deficient number, since it is larger than the sum of its proper divisors (1346143).

153930857 is a wasteful number, since it uses less digits than its factorization.

153930857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 153930857 is about 12406.8874823624. The cubic root of 153930857 is about 535.9306096126.

The spelling of 153930857 in words is "one hundred fifty-three million, nine hundred thirty thousand, eight hundred fifty-seven".