151022149 has 4 divisors (see below), whose sum is σ = 154534336. Its totient is φ = 147509964.

The previous prime is 151022143. The next prime is 151022159. The reversal of 151022149 is 941220151.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 941220151 = 479 ⋅1964969.

It is a cyclic number.

It is not a de Polignac number, because 151022149 - 2³ = 151022141 is a prime.

It is a super-3 number, since 3×151022149³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151022141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1756029 + ... + 1756114.

It is an arithmetic number, because the mean of its divisors is an integer number (38633584).

Almost surely, 2^151022149 is an apocalyptic number.

It is an amenable number.

151022149 is a deficient number, since it is larger than the sum of its proper divisors (3512187).

151022149 is an equidigital number, since it uses as much as digits as its factorization.

151022149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3512186.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 151022149 is about 12289.1069244270. The cubic root of 151022149 is about 532.5334373267.

The spelling of 151022149 in words is "one hundred fifty-one million, twenty-two thousand, one hundred forty-nine".