146157149 has 2 divisors, whose sum is σ = 146157150. Its totient is φ = 146157148.

The previous prime is 146157131. The next prime is 146157173. The reversal of 146157149 is 941751641.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73788100 + 72369049 = 8590^2 + 8507^2 .

It is an emirp because it is prime and its reverse (941751641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 146157149 - 2¹² = 146153053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146150149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73078574 + 73078575.

It is an arithmetic number, because the mean of its divisors is an integer number (73078575).

Almost surely, 2^146157149 is an apocalyptic number.

It is an amenable number.

146157149 is a deficient number, since it is larger than the sum of its proper divisors (1).

146157149 is an equidigital number, since it uses as much as digits as its factorization.

146157149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 38.

The square root of 146157149 is about 12089.5470965624. The cubic root of 146157149 is about 526.7525996529.

The spelling of 146157149 in words is "one hundred forty-six million, one hundred fifty-seven thousand, one hundred forty-nine".