146157091 has 2 divisors, whose sum is σ = 146157092. Its totient is φ = 146157090.

The previous prime is 146157079. The next prime is 146157097. The reversal of 146157091 is 190751641.

It is a strong prime.

It is an emirp because it is prime and its reverse (190751641) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146157091 is a prime.

It is not a weakly prime, because it can be changed into another prime (146157097) 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, 73078545 + 73078546.

It is an arithmetic number, because the mean of its divisors is an integer number (73078546).

Almost surely, 2^146157091 is an apocalyptic number.

146157091 is a deficient number, since it is larger than the sum of its proper divisors (1).

146157091 is an equidigital number, since it uses as much as digits as its factorization.

146157091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 146157091 is about 12089.5446977957. The cubic root of 146157091 is about 526.7525299752.

The spelling of 146157091 in words is "one hundred forty-six million, one hundred fifty-seven thousand, ninety-one".