125440151 has 2 divisors, whose sum is σ = 125440152. Its totient is φ = 125440150.

The previous prime is 125440129. The next prime is 125440163. The reversal of 125440151 is 151044521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125440151 - 2²² = 121245847 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125440111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62720075 + 62720076.

It is an arithmetic number, because the mean of its divisors is an integer number (62720076).

Almost surely, 2^125440151 is an apocalyptic number.

125440151 is a deficient number, since it is larger than the sum of its proper divisors (1).

125440151 is an equidigital number, since it uses as much as digits as its factorization.

125440151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 125440151 is about 11200.0067410694. The cubic root of 125440151 is about 500.5861805162.

Adding to 125440151 its reverse (151044521), we get a palindrome (276484672).

The spelling of 125440151 in words is "one hundred twenty-five million, four hundred forty thousand, one hundred fifty-one".