100368531 has 16 divisors (see below), whose sum is σ = 152714400. Its totient is φ = 65103264.

The previous prime is 100368491. The next prime is 100368539. The reversal of 100368531 is 135863001.

It is not a de Polignac number, because 100368531 - 2⁶ = 100368467 is a prime.

It is a super-2 number, since 2×100368531² = 20147684030195922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 100368495 and 100368504.

It is not an unprimeable number, because it can be changed into a prime (100368539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49236 + ... + 51233.

It is an arithmetic number, because the mean of its divisors is an integer number (9544650).

Almost surely, 2^100368531 is an apocalyptic number.

100368531 is a deficient number, since it is larger than the sum of its proper divisors (52345869).

100368531 is a wasteful number, since it uses less digits than its factorization.

100368531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100515 (or 100509 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 100368531 is about 10018.4096043234. The cubic root of 100368531 is about 464.7283741413.

The spelling of 100368531 in words is "one hundred million, three hundred sixty-eight thousand, five hundred thirty-one".