1225450534 has 64 divisors (see below), whose sum is σ = 2415329280. Its totient is φ = 452121120.

The previous prime is 1225450529. The next prime is 1225450547. The reversal of 1225450534 is 4350545221.

It is a super-2 number, since 2×1225450534² = 3003458022561770312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1225450496 and 1225450505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 363147 + ... + 366505.

It is an arithmetic number, because the mean of its divisors is an integer number (37739520).

Almost surely, 2^1225450534 is an apocalyptic number.

1225450534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1225450534 is a deficient number, since it is larger than the sum of its proper divisors (1189878746).

1225450534 is a wasteful number, since it uses less digits than its factorization.

1225450534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3505.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 1225450534 is about 35006.4356083278. The cubic root of 1225450534 is about 1070.1186388380.

Adding to 1225450534 its reverse (4350545221), we get a palindrome (5575995755).

The spelling of 1225450534 in words is "one billion, two hundred twenty-five million, four hundred fifty thousand, five hundred thirty-four".