103400531 has 8 divisors (see below), whose sum is σ = 114946944. Its totient is φ = 92367360.

The previous prime is 103400519. The next prime is 103400581. The reversal of 103400531 is 135004301.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103400531 is a prime.

It is a super-3 number, since 3×103400531³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103400501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127886 + ... + 128691.

It is an arithmetic number, because the mean of its divisors is an integer number (14368368).

Almost surely, 2^103400531 is an apocalyptic number.

103400531 is a deficient number, since it is larger than the sum of its proper divisors (11546413).

103400531 is a wasteful number, since it uses less digits than its factorization.

103400531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256621.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 103400531 is about 10168.6051649181. The cubic root of 103400531 is about 469.3616367502.

Adding to 103400531 its reverse (135004301), we get a palindrome (238404832).

The spelling of 103400531 in words is "one hundred three million, four hundred thousand, five hundred thirty-one".