125561153 has 2 divisors, whose sum is σ = 125561154. Its totient is φ = 125561152.

The previous prime is 125561143. The next prime is 125561171. The reversal of 125561153 is 351165521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80496784 + 45064369 = 8972^2 + 6713^2 .

It is a cyclic number.

It is not a de Polignac number, because 125561153 - 2¹² = 125557057 is a prime.

It is not a weakly prime, because it can be changed into another prime (125561123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62780576 + 62780577.

It is an arithmetic number, because the mean of its divisors is an integer number (62780577).

Almost surely, 2^125561153 is an apocalyptic number.

It is an amenable number.

125561153 is a deficient number, since it is larger than the sum of its proper divisors (1).

125561153 is an equidigital number, since it uses as much as digits as its factorization.

125561153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4500, while the sum is 29.

The square root of 125561153 is about 11205.4073107585. The cubic root of 125561153 is about 500.7470871656.

The spelling of 125561153 in words is "one hundred twenty-five million, five hundred sixty-one thousand, one hundred fifty-three".