612019953 has 12 divisors (see below), whose sum is σ = 886076100. Its totient is φ = 407068416.

The previous prime is 612019943. The next prime is 612019987. The reversal of 612019953 is 359910216.

It can be written as a sum of positive squares in 2 ways, for example, as 360734049 + 251285904 = 18993^2 + 15852^2 .

It is not a de Polignac number, because 612019953 - 2⁴ = 612019937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (612019913) 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 11 ways as a sum of consecutive naturals, for example, 74628 + ... + 82421.

It is an arithmetic number, because the mean of its divisors is an integer number (73839675).

Almost surely, 2^612019953 is an apocalyptic number.

It is an amenable number.

612019953 is a deficient number, since it is larger than the sum of its proper divisors (274056147).

612019953 is a wasteful number, since it uses less digits than its factorization.

612019953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157488 (or 157485 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 612019953 is about 24739.0370265295. The cubic root of 612019953 is about 849.0277016104.

The spelling of 612019953 in words is "six hundred twelve million, nineteen thousand, nine hundred fifty-three".