151531151 has 2 divisors, whose sum is σ = 151531152. Its totient is φ = 151531150.

The previous prime is 151531147. The next prime is 151531189. The reversal of 151531151 is 151135151.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 151531151 - 2² = 151531147 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151531141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75765575 + 75765576.

It is an arithmetic number, because the mean of its divisors is an integer number (75765576).

Almost surely, 2^151531151 is an apocalyptic number.

151531151 is a deficient number, since it is larger than the sum of its proper divisors (1).

151531151 is an equidigital number, since it uses as much as digits as its factorization.

151531151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 375, while the sum is 23.

The square root of 151531151 is about 12309.7989829241. The cubic root of 151531151 is about 533.1310464184.

The spelling of 151531151 in words is "one hundred fifty-one million, five hundred thirty-one thousand, one hundred fifty-one".