100404057461 has 4 divisors (see below), whose sum is σ = 100924285932. Its totient is φ = 99883828992.

The previous prime is 100404057371. The next prime is 100404057499. The reversal of 100404057461 is 164750404001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 164750404001 = 113 ⋅1457968177.

It can be written as a sum of positive squares in 2 ways, for example, as 49375506436 + 51028551025 = 222206^2 + 225895^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100404057461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100404057161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260113946 + ... + 260114331.

It is an arithmetic number, because the mean of its divisors is an integer number (25231071483).

Almost surely, 2^100404057461 is an apocalyptic number.

It is an amenable number.

100404057461 is a deficient number, since it is larger than the sum of its proper divisors (520228471).

100404057461 is an equidigital number, since it uses as much as digits as its factorization.

100404057461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520228470.

The product of its (nonzero) digits is 13440, while the sum is 32.

The spelling of 100404057461 in words is "one hundred billion, four hundred four million, fifty-seven thousand, four hundred sixty-one".