149854519 has 2 divisors, whose sum is σ = 149854520. Its totient is φ = 149854518.

The previous prime is 149854493. The next prime is 149854531. The reversal of 149854519 is 915458941.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149854519 - 2¹¹ = 149852471 is a prime.

It is a super-2 number, since 2×149854519² = 44912753729442722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149854219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74927259 + 74927260.

It is an arithmetic number, because the mean of its divisors is an integer number (74927260).

Almost surely, 2^149854519 is an apocalyptic number.

149854519 is a deficient number, since it is larger than the sum of its proper divisors (1).

149854519 is an equidigital number, since it uses as much as digits as its factorization.

149854519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 46.

The square root of 149854519 is about 12241.5080361857. The cubic root of 149854519 is about 531.1574549936.

The spelling of 149854519 in words is "one hundred forty-nine million, eight hundred fifty-four thousand, five hundred nineteen".