151230257 has 2 divisors, whose sum is σ = 151230258. Its totient is φ = 151230256.

The previous prime is 151230251. The next prime is 151230271. The reversal of 151230257 is 752032151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144096016 + 7134241 = 12004^2 + 2671^2 .

It is a cyclic number.

It is not a de Polignac number, because 151230257 - 2²² = 147035953 is a prime.

It is not a weakly prime, because it can be changed into another prime (151230251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75615128 + 75615129.

It is an arithmetic number, because the mean of its divisors is an integer number (75615129).

Almost surely, 2^151230257 is an apocalyptic number.

It is an amenable number.

151230257 is a deficient number, since it is larger than the sum of its proper divisors (1).

151230257 is an equidigital number, since it uses as much as digits as its factorization.

151230257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 151230257 is about 12297.5711829613. The cubic root of 151230257 is about 532.7779348016. Note that the first 3 decimals are identical.

The spelling of 151230257 in words is "one hundred fifty-one million, two hundred thirty thousand, two hundred fifty-seven".