125415151 has 4 divisors (see below), whose sum is σ = 126824400. Its totient is φ = 124005904.

The previous prime is 125415109. The next prime is 125415193. The reversal of 125415151 is 151514521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 151514521 = 283 ⋅535387.

It is an interprime number because it is at equal distance from previous prime (125415109) and next prime (125415193).

It is a cyclic number.

It is not a de Polignac number, because 125415151 - 2¹¹ = 125413103 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125415551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 704491 + ... + 704668.

It is an arithmetic number, because the mean of its divisors is an integer number (31706100).

Almost surely, 2^125415151 is an apocalyptic number.

125415151 is a deficient number, since it is larger than the sum of its proper divisors (1409249).

125415151 is an equidigital number, since it uses as much as digits as its factorization.

125415151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409248.

The product of its digits is 1000, while the sum is 25.

The square root of 125415151 is about 11198.8906146993. The cubic root of 125415151 is about 500.5529229936.

Adding to 125415151 its reverse (151514521), we get a palindrome (276929672).

The spelling of 125415151 in words is "one hundred twenty-five million, four hundred fifteen thousand, one hundred fifty-one".