151015649 has 2 divisors, whose sum is σ = 151015650. Its totient is φ = 151015648.

The previous prime is 151015643. The next prime is 151015681. The reversal of 151015649 is 946510151.

It is an a-pointer prime, because the next prime (151015681) can be obtained adding 151015649 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81126049 + 69889600 = 9007^2 + 8360^2 .

It is a cyclic number.

It is not a de Polignac number, because 151015649 - 2¹⁶ = 150950113 is a prime.

It is not a weakly prime, because it can be changed into another prime (151015643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75507824 + 75507825.

It is an arithmetic number, because the mean of its divisors is an integer number (75507825).

Almost surely, 2^151015649 is an apocalyptic number.

It is an amenable number.

151015649 is a deficient number, since it is larger than the sum of its proper divisors (1).

151015649 is an equidigital number, since it uses as much as digits as its factorization.

151015649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 151015649 is about 12288.8424597274. The cubic root of 151015649 is about 532.5257971294.

The spelling of 151015649 in words is "one hundred fifty-one million, fifteen thousand, six hundred forty-nine".