151056649 has 2 divisors, whose sum is σ = 151056650. Its totient is φ = 151056648.

The previous prime is 151056643. The next prime is 151056667. The reversal of 151056649 is 946650151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150921225 + 135424 = 12285^2 + 368^2 .

It is a cyclic number.

It is not a de Polignac number, because 151056649 - 2¹¹ = 151054601 is a prime.

It is a super-2 number, since 2×151056649² = 45636222414218402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (151056643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75528324 + 75528325.

It is an arithmetic number, because the mean of its divisors is an integer number (75528325).

Almost surely, 2^151056649 is an apocalyptic number.

It is an amenable number.

151056649 is a deficient number, since it is larger than the sum of its proper divisors (1).

151056649 is an equidigital number, since it uses as much as digits as its factorization.

151056649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 151056649 is about 12290.5105264183. The cubic root of 151056649 is about 532.5739854733.

The spelling of 151056649 in words is "one hundred fifty-one million, fifty-six thousand, six hundred forty-nine".