400103541 has 6 divisors (see below), whose sum is σ = 577927350. Its totient is φ = 266735688.

The previous prime is 400103537. The next prime is 400103567. The reversal of 400103541 is 145301004.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 382007025 + 18096516 = 19545^2 + 4254^2 .

It is not a de Polignac number, because 400103541 - 2² = 400103537 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400103581) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22227966 + ... + 22227983.

It is an arithmetic number, because the mean of its divisors is an integer number (96321225).

Almost surely, 2^400103541 is an apocalyptic number.

It is an amenable number.

400103541 is a deficient number, since it is larger than the sum of its proper divisors (177823809).

400103541 is a wasteful number, since it uses less digits than its factorization.

400103541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44455955 (or 44455952 counting only the distinct ones).

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

The square root of 400103541 is about 20002.5883575101. The cubic root of 400103541 is about 736.8698689609.

Adding to 400103541 its reverse (145301004), we get a palindrome (545404545).

The spelling of 400103541 in words is "four hundred million, one hundred three thousand, five hundred forty-one".