100401534 has 24 divisors (see below), whose sum is σ = 217766952. Its totient is φ = 33431760.

The previous prime is 100401527. The next prime is 100401551. The reversal of 100401534 is 435104001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18897 + ... + 23619.

It is an arithmetic number, because the mean of its divisors is an integer number (9073623).

Almost surely, 2^100401534 is an apocalyptic number.

100401534 is an abundant number, since it is smaller than the sum of its proper divisors (117365418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100401534 is a wasteful number, since it uses less digits than its factorization.

100401534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5912 (or 5909 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 100401534 is about 10020.0565866666. The cubic root of 100401534 is about 464.7793056089.

Adding to 100401534 its reverse (435104001), we get a palindrome (535505535).

The spelling of 100401534 in words is "one hundred million, four hundred one thousand, five hundred thirty-four".