1226523542 has 16 divisors (see below), whose sum is σ = 1853108160. Its totient is φ = 608836608.

The previous prime is 1226523521. The next prime is 1226523601. The reversal of 1226523542 is 2453256221.

It is a junction number, because it is equal to n+sod(n) for n = 1226523499 and 1226523508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164438 + ... + 171734.

It is an arithmetic number, because the mean of its divisors is an integer number (115819260).

Almost surely, 2^1226523542 is an apocalyptic number.

1226523542 is a deficient number, since it is larger than the sum of its proper divisors (626584618).

1226523542 is a wasteful number, since it uses less digits than its factorization.

1226523542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7895.

The product of its digits is 28800, while the sum is 32.

The square root of 1226523542 is about 35021.7581226300. The cubic root of 1226523542 is about 1070.4308807049.

Adding to 1226523542 its reverse (2453256221), we get a palindrome (3679779763).

The spelling of 1226523542 in words is "one billion, two hundred twenty-six million, five hundred twenty-three thousand, five hundred forty-two".