153381963 has 24 divisors (see below), whose sum is σ = 244346368. Its totient is φ = 83830032.

The previous prime is 153381959. The next prime is 153382001. The reversal of 153381963 is 369183351.

It is not a de Polignac number, because 153381963 - 2² = 153381959 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (153381563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4206 + ... + 18012.

Almost surely, 2^153381963 is an apocalyptic number.

153381963 is a deficient number, since it is larger than the sum of its proper divisors (90964405).

153381963 is a wasteful number, since it uses less digits than its factorization.

153381963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13863 (or 13840 counting only the distinct ones).

The product of its digits is 58320, while the sum is 39.

The square root of 153381963 is about 12384.7471916063. The cubic root of 153381963 is about 535.2928352894.

The spelling of 153381963 in words is "one hundred fifty-three million, three hundred eighty-one thousand, nine hundred sixty-three".