154223514 has 20 divisors (see below), whose sum is σ = 345575274. Its totient is φ = 51407784.

The previous prime is 154223483. The next prime is 154223527. The reversal of 154223514 is 415322451.

It can be written as a sum of positive squares in only one way, i.e., 150479289 + 3744225 = 12267^2 + 1935^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 475837 + ... + 476160.

Almost surely, 2^154223514 is an apocalyptic number.

154223514 is an abundant number, since it is smaller than the sum of its proper divisors (191351760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154223514 is an equidigital number, since it uses as much as digits as its factorization.

154223514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952011 (or 952002 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 154223514 is about 12418.6760163876. The cubic root of 154223514 is about 536.2700359280.

Adding to 154223514 its reverse (415322451), we get a palindrome (569545965).

The spelling of 154223514 in words is "one hundred fifty-four million, two hundred twenty-three thousand, five hundred fourteen".