125321653 has 2 divisors, whose sum is σ = 125321654. Its totient is φ = 125321652.

The previous prime is 125321629. The next prime is 125321657. The reversal of 125321653 is 356123521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108618084 + 16703569 = 10422^2 + 4087^2 .

It is a cyclic number.

It is not a de Polignac number, because 125321653 - 2¹⁷ = 125190581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125321657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62660826 + 62660827.

It is an arithmetic number, because the mean of its divisors is an integer number (62660827).

Almost surely, 2^125321653 is an apocalyptic number.

It is an amenable number.

125321653 is a deficient number, since it is larger than the sum of its proper divisors (1).

125321653 is an equidigital number, since it uses as much as digits as its factorization.

125321653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 28.

The square root of 125321653 is about 11194.7154050472. The cubic root of 125321653 is about 500.4285033316.

The spelling of 125321653 in words is "one hundred twenty-five million, three hundred twenty-one thousand, six hundred fifty-three".