149214157 has 2 divisors, whose sum is σ = 149214158. Its totient is φ = 149214156.

The previous prime is 149214139. The next prime is 149214161. The reversal of 149214157 is 751412941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84989961 + 64224196 = 9219^2 + 8014^2 .

It is a cyclic number.

It is not a de Polignac number, because 149214157 - 2⁷ = 149214029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149214167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74607078 + 74607079.

It is an arithmetic number, because the mean of its divisors is an integer number (74607079).

Almost surely, 2^149214157 is an apocalyptic number.

It is an amenable number.

149214157 is a deficient number, since it is larger than the sum of its proper divisors (1).

149214157 is an equidigital number, since it uses as much as digits as its factorization.

149214157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 34.

The square root of 149214157 is about 12215.3246784521. The cubic root of 149214157 is about 530.3997897277.

The spelling of 149214157 in words is "one hundred forty-nine million, two hundred fourteen thousand, one hundred fifty-seven".