149210051 has 4 divisors (see below), whose sum is σ = 149867592. Its totient is φ = 148552512.

The previous prime is 149209981. The next prime is 149210053. The reversal of 149210051 is 150012941.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150012941 = 13 ⋅11539457.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149210051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149209999 and 149210026.

It is not an unprimeable number, because it can be changed into a prime (149210053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328430 + ... + 328883.

It is an arithmetic number, because the mean of its divisors is an integer number (37466898).

Almost surely, 2^149210051 is an apocalyptic number.

149210051 is a deficient number, since it is larger than the sum of its proper divisors (657541).

149210051 is an equidigital number, since it uses as much as digits as its factorization.

149210051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657540.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 149210051 is about 12215.1566097206. The cubic root of 149210051 is about 530.3949245916.

Adding to 149210051 its reverse (150012941), we get a palindrome (299222992).

The spelling of 149210051 in words is "one hundred forty-nine million, two hundred ten thousand, fifty-one".