125001653 has 4 divisors (see below), whose sum is σ = 142859040. Its totient is φ = 107144268.

The previous prime is 125001631. The next prime is 125001683. The reversal of 125001653 is 356100521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 356100521 = 7 ⋅50871503.

It is not a de Polignac number, because 125001653 - 2¹⁸ = 124739509 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 (125001683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8928683 + ... + 8928696.

It is an arithmetic number, because the mean of its divisors is an integer number (35714760).

Almost surely, 2^125001653 is an apocalyptic number.

It is an amenable number.

125001653 is a deficient number, since it is larger than the sum of its proper divisors (17857387).

125001653 is an equidigital number, since it uses as much as digits as its factorization.

125001653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17857386.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 125001653 is about 11180.4138116619. The cubic root of 125001653 is about 500.0022039903.

The spelling of 125001653 in words is "one hundred twenty-five million, one thousand, six hundred fifty-three".