151532197 has 2 divisors, whose sum is σ = 151532198. Its totient is φ = 151532196.

The previous prime is 151532149. The next prime is 151532231. The reversal of 151532197 is 791235151.

It is an a-pointer prime, because the next prime (151532231) can be obtained adding 151532197 to its sum of digits (34).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133841761 + 17690436 = 11569^2 + 4206^2 .

It is a cyclic number.

It is not a de Polignac number, because 151532197 - 2¹⁵ = 151499429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151532107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75766098 + 75766099.

It is an arithmetic number, because the mean of its divisors is an integer number (75766099).

Almost surely, 2^151532197 is an apocalyptic number.

It is an amenable number.

151532197 is a deficient number, since it is larger than the sum of its proper divisors (1).

151532197 is an equidigital number, since it uses as much as digits as its factorization.

151532197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9450, while the sum is 34.

The square root of 151532197 is about 12309.8414693285. The cubic root of 151532197 is about 533.1322731272.

The spelling of 151532197 in words is "one hundred fifty-one million, five hundred thirty-two thousand, one hundred ninety-seven".