151240591 has 2 divisors, whose sum is σ = 151240592. Its totient is φ = 151240590.

The previous prime is 151240567. The next prime is 151240601. The reversal of 151240591 is 195042151.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 151240591 - 2⁵ = 151240559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151240511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75620295 + 75620296.

It is an arithmetic number, because the mean of its divisors is an integer number (75620296).

Almost surely, 2^151240591 is an apocalyptic number.

151240591 is a deficient number, since it is larger than the sum of its proper divisors (1).

151240591 is an equidigital number, since it uses as much as digits as its factorization.

151240591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 151240591 is about 12297.9913400522. The cubic root of 151240591 is about 532.7900699432.

The spelling of 151240591 in words is "one hundred fifty-one million, two hundred forty thousand, five hundred ninety-one".