149319701 has 2 divisors, whose sum is σ = 149319702. Its totient is φ = 149319700.

The previous prime is 149319697. The next prime is 149319757. The reversal of 149319701 is 107913941.

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., 148815601 + 504100 = 12199^2 + 710^2 .

It is a cyclic number.

It is not a de Polignac number, because 149319701 - 2² = 149319697 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149319761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74659850 + 74659851.

It is an arithmetic number, because the mean of its divisors is an integer number (74659851).

Almost surely, 2^149319701 is an apocalyptic number.

It is an amenable number.

149319701 is a deficient number, since it is larger than the sum of its proper divisors (1).

149319701 is an equidigital number, since it uses as much as digits as its factorization.

149319701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 149319701 is about 12219.6440619193. The cubic root of 149319701 is about 530.5248165633.

The spelling of 149319701 in words is "one hundred forty-nine million, three hundred nineteen thousand, seven hundred one".