1218150434 has 8 divisors (see below), whose sum is σ = 1835420160. Its totient is φ = 606343716.

The previous prime is 1218150431. The next prime is 1218150457. The reversal of 1218150434 is 4340518121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1218150397 and 1218150406.

It is not an unprimeable number, because it can be changed into a prime (1218150431) 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, 1365194 + ... + 1366085.

It is an arithmetic number, because the mean of its divisors is an integer number (229427520).

Almost surely, 2^1218150434 is an apocalyptic number.

1218150434 is a deficient number, since it is larger than the sum of its proper divisors (617269726).

1218150434 is a wasteful number, since it uses less digits than its factorization.

1218150434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2731504.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 1218150434 is about 34902.0118904341. The cubic root of 1218150434 is about 1067.9894799237.

Adding to 1218150434 its reverse (4340518121), we get a palindrome (5558668555).

The spelling of 1218150434 in words is "one billion, two hundred eighteen million, one hundred fifty thousand, four hundred thirty-four".