612148931 has 2 divisors, whose sum is σ = 612148932. Its totient is φ = 612148930.

The previous prime is 612148921. The next prime is 612148939. The reversal of 612148931 is 139841216.

612148931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 612148931 - 2¹⁸ = 611886787 is a prime.

It is a super-2 number, since 2×612148931² = 749452627448885522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 612148891 and 612148900.

It is not a weakly prime, because it can be changed into another prime (612148939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306074465 + 306074466.

It is an arithmetic number, because the mean of its divisors is an integer number (306074466).

Almost surely, 2^612148931 is an apocalyptic number.

612148931 is a deficient number, since it is larger than the sum of its proper divisors (1).

612148931 is an equidigital number, since it uses as much as digits as its factorization.

612148931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 35.

The square root of 612148931 is about 24741.6436600320. The cubic root of 612148931 is about 849.0873392103.

The spelling of 612148931 in words is "six hundred twelve million, one hundred forty-eight thousand, nine hundred thirty-one".