151097021 has 2 divisors, whose sum is σ = 151097022. Its totient is φ = 151097020.

The previous prime is 151096951. The next prime is 151097027. The reversal of 151097021 is 120790151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132940900 + 18156121 = 11530^2 + 4261^2 .

It is a cyclic number.

It is not a de Polignac number, because 151097021 - 2¹⁴ = 151080637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151097027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75548510 + 75548511.

It is an arithmetic number, because the mean of its divisors is an integer number (75548511).

Almost surely, 2^151097021 is an apocalyptic number.

It is an amenable number.

151097021 is a deficient number, since it is larger than the sum of its proper divisors (1).

151097021 is an equidigital number, since it uses as much as digits as its factorization.

151097021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630, while the sum is 26.

The square root of 151097021 is about 12292.1528220243. The cubic root of 151097021 is about 532.6214271933.

The spelling of 151097021 in words is "one hundred fifty-one million, ninety-seven thousand, twenty-one".