149724101 has 2 divisors, whose sum is σ = 149724102. Its totient is φ = 149724100.

The previous prime is 149724037. The next prime is 149724109. The reversal of 149724101 is 101427941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116661601 + 33062500 = 10801^2 + 5750^2 .

It is a cyclic number.

It is not a de Polignac number, because 149724101 - 2⁶ = 149724037 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149724109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74862050 + 74862051.

It is an arithmetic number, because the mean of its divisors is an integer number (74862051).

Almost surely, 2^149724101 is an apocalyptic number.

It is an amenable number.

149724101 is a deficient number, since it is larger than the sum of its proper divisors (1).

149724101 is an equidigital number, since it uses as much as digits as its factorization.

149724101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 149724101 is about 12236.1800003106. The cubic root of 149724101 is about 531.0033219516.

The spelling of 149724101 in words is "one hundred forty-nine million, seven hundred twenty-four thousand, one hundred one".