1204612631 has 8 divisors (see below), whose sum is σ = 1223268864. Its totient is φ = 1185976440.

The previous prime is 1204612627. The next prime is 1204612687. The reversal of 1204612631 is 1362164021.

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

It is a cyclic number.

It is not a de Polignac number, because 1204612631 - 2² = 1204612627 is a prime.

It is a super-2 number, since 2×1204612631² = 2902183181529484322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1204612631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204612691) 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, 155066 + ... + 162648.

It is an arithmetic number, because the mean of its divisors is an integer number (152908608).

Almost surely, 2^1204612631 is an apocalyptic number.

1204612631 is a deficient number, since it is larger than the sum of its proper divisors (18656233).

1204612631 is an equidigital number, since it uses as much as digits as its factorization.

1204612631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10021.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1204612631 is about 34707.5298890601. The cubic root of 1204612631 is about 1064.0183982982.

Adding to 1204612631 its reverse (1362164021), we get a palindrome (2566776652).

The spelling of 1204612631 in words is "one billion, two hundred four million, six hundred twelve thousand, six hundred thirty-one".