103400451 has 48 divisors (see below), whose sum is σ = 196035840. Its totient is φ = 50880960.

The previous prime is 103400431. The next prime is 103400491. The reversal of 103400451 is 154004301.

It is a happy number.

It is not a de Polignac number, because 103400451 - 2⁵ = 103400419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103400431) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9241 + ... + 17093.

It is an arithmetic number, because the mean of its divisors is an integer number (4084080).

Almost surely, 2^103400451 is an apocalyptic number.

103400451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

103400451 is a deficient number, since it is larger than the sum of its proper divisors (92635389).

103400451 is a wasteful number, since it uses less digits than its factorization.

103400451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7896 (or 7893 counting only the distinct ones).

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

The square root of 103400451 is about 10168.6012312412. The cubic root of 103400451 is about 469.3615157033.

Adding to 103400451 its reverse (154004301), we get a palindrome (257404752).

The spelling of 103400451 in words is "one hundred three million, four hundred thousand, four hundred fifty-one".