125451502143 has 32 divisors (see below), whose sum is σ = 193869020160. Its totient is φ = 71425388160.

The previous prime is 125451502133. The next prime is 125451502153. The reversal of 125451502143 is 341205154521.

It is an interprime number because it is at equal distance from previous prime (125451502133) and next prime (125451502153).

It is not a de Polignac number, because 125451502143 - 2²¹ = 125449404991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125451502133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1736055 + ... + 1806872.

It is an arithmetic number, because the mean of its divisors is an integer number (6058406880).

Almost surely, 2^125451502143 is an apocalyptic number.

125451502143 is a deficient number, since it is larger than the sum of its proper divisors (68417518017).

125451502143 is a wasteful number, since it uses less digits than its factorization.

125451502143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3543007.

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 125451502143 its reverse (341205154521), we get a palindrome (466656656664).

The spelling of 125451502143 in words is "one hundred twenty-five billion, four hundred fifty-one million, five hundred two thousand, one hundred forty-three".