611497901 has 6 divisors (see below), whose sum is σ = 711334350. Its totient is φ = 524141016.

The previous prime is 611497891. The next prime is 611497921. The reversal of 611497901 is 109794116.

It can be written as a sum of positive squares in only one way, i.e., 581533225 + 29964676 = 24115^2 + 5474^2 .

It is not a de Polignac number, because 611497901 - 2¹⁰ = 611496877 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 (611497921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6239726 + ... + 6239823.

It is an arithmetic number, because the mean of its divisors is an integer number (118555725).

Almost surely, 2^611497901 is an apocalyptic number.

It is an amenable number.

611497901 is a deficient number, since it is larger than the sum of its proper divisors (99836449).

611497901 is a wasteful number, since it uses less digits than its factorization.

611497901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12479563 (or 12479556 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 611497901 is about 24728.4835968565. The cubic root of 611497901 is about 848.7862265332.

The spelling of 611497901 in words is "six hundred eleven million, four hundred ninety-seven thousand, nine hundred one".