1210401061 has 8 divisors (see below), whose sum is σ = 1275523200. Its totient is φ = 1145420640.

The previous prime is 1210401047. The next prime is 1210401079. The reversal of 1210401061 is 1601040121.

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 1210401061 - 2²¹ = 1208303909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210401041) 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, 17656 + ... + 52273.

It is an arithmetic number, because the mean of its divisors is an integer number (159440400).

Almost surely, 2^1210401061 is an apocalyptic number.

It is an amenable number.

1210401061 is a deficient number, since it is larger than the sum of its proper divisors (65122139).

1210401061 is an equidigital number, since it uses as much as digits as its factorization.

1210401061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70859.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1210401061 is about 34790.8186307825. The cubic root of 1210401061 is about 1065.7199569565.

Adding to 1210401061 its reverse (1601040121), we get a palindrome (2811441182).

The spelling of 1210401061 in words is "one billion, two hundred ten million, four hundred one thousand, sixty-one".