690131201 has 8 divisors (see below), whose sum is σ = 743113440. Its totient is φ = 638525248.

The previous prime is 690131177. The next prime is 690131219. The reversal of 690131201 is 102131096.

It is a happy number.

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 690131201 - 2¹⁸ = 689869057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (690131231) 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, 343031 + ... + 345036.

It is an arithmetic number, because the mean of its divisors is an integer number (92889180).

Almost surely, 2^690131201 is an apocalyptic number.

It is an amenable number.

690131201 is a deficient number, since it is larger than the sum of its proper divisors (52982239).

690131201 is a wasteful number, since it uses less digits than its factorization.

690131201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688143.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 690131201 is about 26270.3483227764. The cubic root of 690131201 is about 883.7115966606.

Adding to 690131201 its reverse (102131096), we get a palindrome (792262297).

The spelling of 690131201 in words is "six hundred ninety million, one hundred thirty-one thousand, two hundred one".